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Class Information
Number: 33
Name: Geometrical instruments >
Description: This class provides for means for determining the characteristics and the mutual relation of points, lines, angles, surfaces, and solids, considered as having no properties but those arising from extension and difference of situation. It includes mechanically guided means for describing lines. Processes or methods are classified in the appropriate subclasses with instruments unless specifically provided for by a process subclass. For the most part specific subclasses are not provided for compound instruments; but an invention comprising matter classifiable in more than one specific subclass is placed in the subclass having the lowest number and cross-referenced into the subclass or subclasses having the higher number or numbers.

Class Number	Class Name	No. of Patents
33/DIG.2	Air	67
33/2R	Apparel	43
33/3R	Footwear	44
33/4	Laying out	3
33/5	Patterns	5
33/3C	Multiple indicating means interconnected	16
33/3B	Multiple indicating means, independent	20
33/6	Processes	16
33/3A	Single measuring or indicating means	17
33/2H	Hems and cuffs	10
33/11	Laying out	32
33/16	Adjustable	8
33/12	Patterns and charts	43
33/14	Adjustable	16
33/15	Conforming	14
33/13	Perforated	11
33/7	Leveling features	3
33/17R	Processes	56
33/17A	Pattern grading	16
33/8	Stand supported	4
33/9R	Skirts	3
33/10	Platform	5
33/9A	Powder-marking	1
33/2A	Stocking gauge	5
33/121	Area integrators	26
33/123	Electrical	18
33/122	Planimeters	7
33/124	Rolling contact	18
33/DIG.16	Clips and rafters	2
33/DIG.6	Dial indicator shock absorber	8
33/DIG.5	Differential transformer	10
33/700	Distance measuring	98
33/712	Article support integral with measuring means	32
33/755	By flexible tape	155
33/760	Combined	181
33/756	Cord type	49
33/770	Including attachment	173
33/757	Means to keep tape straight	35
33/761	Specified reel housing feature	145
33/769	Housing shape, structure or material	84
33/768	Including attachment	102
33/767	Including brake or lock	111
33/766	Inside-outside measure	6
33/765	Opening in housing for reading tape	14
33/764	Plural tapes	21
33/762	With meter	30
33/763	Including computing means	52
33/771	Specified tape material	35
33/759	Specified use	159
33/758	With adhesive or securing means	119
33/709	Convertable to another type measuring means	10
33/703	Environmental isolation	16
33/705	Sealing	26
33/704	Thermal	21
33/702	Error compensation (e.g., temperature)	121
33/710	Machine parts	37
33/711	Rolling contact	17
33/732	Of flexible material	34
33/734	By rolling contact	22
33/744	Belt type	7
33/743	Combined	3
33/738	Having rectilinear scale	2
33/747	Opposed rotating surfaces	11
33/748	Plural	3
33/749	Only three	0
33/746	Rotating and stationary surfaces	2
33/735	With computing means	36
33/736	With particular electric output or circuit	7
33/737	With recording or marking means	10
33/739	With signal means	6
33/740	With stop means	9
33/742	By clutch	0
33/741	For motor	3
33/745	Zero setting means	1
33/750	Predetermined stop or signal means	8
33/733	Supply (e.g., bolt, roll)	25
33/753	With gear means to move indicator	1
33/751	With marking means	7
33/752	With ratchet means to move indicator	0
33/754	With take up reel	7
33/772	Of length by rolling contact	46
33/776	Belt type	9
33/775	Combined	31
33/774	Having rectilinear indicator	3
33/779	Implement	12
33/780	With digital indicator	20
33/781	Including handle for implement	17
33/782	With handle	10
33/777	Inside tube	5
33/778	On running material (e.g., mill type)	13
33/773	With computing means	53
33/783	Opposed contacts	163
33/810	Beam type with scale	64
33/812	Including means to lock one contact member	17
33/811	With means to adjust one contact member	26
33/784	Digital indicator	113
33/809	Exstensible-rule type	71
33/787	Extensometer	30
33/790	Including means to clamp indicator to material	23
33/788	With circuit means	11
33/789	Including differential transformer	4
33/785	Fluid indicator	5
33/786	Liquid column indicator	5
33/813	Micrometer	42
33/831	Details (e.g., spindle or anvil adjustment, material	25
33/814	Differential screw	8
33/827	Inside measurement only	16
33/818	With additional indicator	5
33/819	Digital	23
33/820	Electrical	15
33/828	With attachment	9
33/829	Particularly adapted for measuring threaded element	13
33/817	With lock	2
33/815	With means for maintaining a constant or limited pressure on the contacts	18
33/821	With preliminary setting arrangement	6
33/822	By disengaging threaded element	2
33/826	By use of interchangeable parts of different sizes	2
33/823	Micrometer slidably mounted on a beam	1
33/824	Other contact slidable on beam	0
33/825	Spindle or micrometer slidable	1
33/830	With special scale markings	9
33/816	With wear compensation or backlash prevention means	2
33/791	Optical indicator	9
33/807	Pivoted type with scale	14
33/808	With adjustment means	2
33/806	Rectilinear indicator	23
33/792	Rotary indicator	12
33/803	Bench type	18
33/804	Lever actuator	4
33/793	Electrically controlled	14
33/794	Hand held implement	21
33/795	Beam type	13
33/796	Nonpivoted type with scale	14
33/797	Pivoted type	22
33/798	Center pivot	3
33/801	With scale	3
33/799	With screw or gear adjustment means	0
33/800	With spring adjustment means	2
33/802	Rectilinear push or pull actuator	10
33/805	With work support	7
33/701	Process	61
33/706	Scale reading position sensor (e.g., grid counting)	254
33/708	Magnetic	94
33/707	Optical	212
33/832	Single contact with a work engaging support	215
33/833	Adapted for a particular workpiece	154
33/834	Coating or surface layer thickness	39
33/836	Depth of aperture or groove	99
33/835	Reeled material	3
33/837	Fluid actuated indicator	8
33/838	Screw adjustment	13
33/713	Sounding type	8
33/719	Depth indication	31
33/721	For nongaseous material	8
33/722	Liquid (e.g. dipstick)	49
33/729	Shape of indicator	11
33/725	With cleaning means	14
33/727	With filter or vent	8
33/726	With guide	21
33/730	With holder or housing for indicator	17
33/731	Including seal	17
33/728	With lock means	10
33/723	With means to adjust measuring rod	11
33/724	Having plural contacts	1
33/716	Including electrical signal means	22
33/720	Line with weight	26
33/714	With electric control means	4
33/715	Of line	20
33/717	With sampling means	21
33/718	Hole type	0
33/DIG.8	Eccentrics	10
33/DIG.18	Flush pin gauges	1
33/501	Gauge	85
33/511	Anatomical	108
33/512	Human	417
33/514.2	Conformator	24
33/513	Dental	43
33/514	With mouth or teeth contact	56
33/515	Having a support or foot locator for body	86
33/514.1	Ring type	11
33/534	Angle	161
33/538	Fixed pivot at one end	29
33/536	Sine, cosine, or tangent bar	16
33/537	Article support	12
33/535	Squareness	34
33/600	Automotive	168
33/609	Brake	12
33/610	Drum or shoe	11
33/603	Connecting rod	10
33/604	With piston	0
33/602	Distributor point setting	2
33/611	Engine valve, valve-stem, or tappet	12
33/608	Frame alignment	99
33/607	Fuel pump, injection nozzle or valve, or carburator	8
33/601	Mechanical engine timing by piston contact in engine cylinder	6
33/605	Piston, piston ring, or crankshaft	23
33/606	Power train	12
33/612	Torsion bar	2
33/193	Axle	20
33/517	Bearing or bearing part	53
33/509	Bowling ball	16
33/510	Grip	14
33/662	Button or buttonhole	10
33/519	Cam profile or keyway	10
33/520	Center, point, distance between centers, or centerline location	189
33/555.1	Circular size	171
33/555.3	"v" type	40
33/555.2	Aperture type	41
33/555.4	Flexible band type	50
33/613	Collocating	462
33/645	Alignment	492
33/652	Burner fuel emitting member with respect to electrode spacing	3
33/644	Centering or point location	184
33/646	Clapboard lapping	19
33/647	Having tab for supporting bottom of clapboard	41
33/624	Earth contacting or working	20
33/625	Trenching tool depth	1
33/653	Insignia with respect to garment, e.g., uniform	8
33/655	Machine parts	72
33/656	Electrical dynamo	5
33/661	Plural axes center for common axis	24
33/657	Rolls, or roll and coacting part	59
33/658	Typewriter	0
33/659	Watch	0
33/660	Wheel quartering or crank arm, connecting rod or crank pin with respect to one or the other	0
33/614	Printing member registration	54
33/622	Hand stamp registration with respect to printing location on sheet to be printed	5
33/615	Photographic member or holder with respect to surface	6
33/617	Printing type or plate	23
33/618	Curved printing member with respect to its support	30
33/619	Page form registration with respect to its support or to another form on same support	2
33/621	Plate registration with respect to plate support	39
33/620	Plate registration with respect to second plate or printing sheet	18
33/616	Transparent registration sheet to align printing on member	7
33/651	Railway track or railway vehicle part	24
33/651.1	Track type	14
33/623	Sheet registering device	36
33/648	Shingle lapping gauge	29
33/649	Having tab on underside of shingle	19
33/650	Shoe, shoe part, or last	2
33/626	Tool or surrogate	87
33/628	Cutter or shaper	99
33/632	Axis of rotary cutter with respect to axis of cylindrical workpiece	3
33/636	Bit with respect to its holder	13
33/637	Boring bar holder	7
33/638	Bit with respect to workpiece or workpiece holder	67
33/640	Circular cutter with respect to workpiece or workpiece support	82
33/630	Cutter with respect to workpiece end	33
33/631	Shears	4
33/639	Drill or bit with respect to chuck or spindle holder	22
33/633	Planar blade with respect to its holder or another part	23
33/634	With respect to its rotary holder	5
33/635	Plural blade holder	5
33/629	Screw thread	2
33/641	With respect to support	13
33/627	Die	13
33/643	Millstone with respect to millstone shaft	0
33/642	Spindle or chuck with respect to workpiece or workpiece support	83
33/654	Valve	4
33/501.05	Comparator	26
33/501.06	Beam type	10
33/501.07	Three contact probes	1
33/501.6	Electric type	29
33/501.08	Hand held	20
33/501.09	Plural contact probes	16
33/501.45	Fixed size	54
33/501.3	Only four probes	5
33/501.1	Only three probes	6
33/501.2	With rotary indicator	7
33/501.4	With rotary indicator	11
33/501.5	With pivot means	11
33/545	Comparison with a standard	48
33/546	Profile	53
33/547	Optical comparison	12
33/561.1	Conformator or adjustable curve template	46
33/561.2	Flexible type	38
33/561.3	Including plural adjustment means	12
33/522	Container	32
33/501.02	Continuous gauging	77
33/501.03	Including electric means	55
33/501.04	Pivoted probe	41
33/503	Coordinate movable probe or machine	556
33/194	Door and window	90
33/521	Earth profile or road grade or shrub or tree trim guide	46
33/526	Flooring, floor or wall covering, or molding	87
33/527	Floor covering	45
33/508	Golf stance, swing or club analysis	80
33/556	Having a movable contact probe	267
33/558	Electrical switch or transducer responsive to probe or probe is part of electrical circuit	248
33/557	Plural probes	68
33/505	Having program control or an analogue to digital device	67
33/195	Hoof	12
33/542	Internal	220
33/543	Concentricity or eccentricity	62
33/544	Earth cavity or tube	71
33/544.2	Having means to actuate probe	27
33/544.3	Biased probe	55
33/544.1	Including means to rotate probe	14
33/543.1	Fluid type	9
33/544.5	Having more than two probes	31
33/544.6	Only three probes	8
33/544.4	Tapered probe	22
33/542.1	Telescoping caliper or stem gauge	17
33/501.01	Leather grading or size	1
33/507	Lens	104
33/539	Lock or key	14
33/540	Cylinder lock tumbler decoder	20
33/518	Masonry construction	56
33/196	Millstone	0
33/197	Mortise	71
33/559	Movable contact probe, per se	271
33/560	Plural probes	35
33/561	With electrical switch or transducer responsive to probe	279
33/524	Pie, cake, cheese, pizza, or sandwich portion	14
33/525	Pie, cake, cheese, pizza or sandwich portion	4
33/529	Pipe layout or fitting	124
33/530	Pitchometer	23
33/558.01	Pivoted probes (e.g., divider, caliper, etc.)	35
33/558.04	Having adjustable legs	10
33/558.05	By screw means	0
33/558.09	Having opposed threads	1
33/558.07	Median	0
33/558.08	Quick adjustment	0
33/558.1	Rotatable nut	0
33/558.06	Tangent	0
33/558.5	Median handle	4
33/558.4	Pivoted probe	8
33/558.2	Plural legs or contact probes	15
33/558.03	Point parallelizing	3
33/558.02	Proportional	10
33/558.3	Removable probe	4
33/548	Plural tests	45
33/516	Point reproducer	6
33/541	Postage stamp or mechanical coupling gauge	6
33/572	Probe support	80
33/663	Proportional line segmenter	11
33/665	Dividers	2
33/664	Parallelogram type	10
33/199R	Screw thread	106
33/199B	Bench type	16
33/679.1	Special scale markings	84
33/200	Spectacle	107
33/533	Straightness, flatness, or alignment	251
33/567	Surface plate or gauge block	92
33/567.1	Adjustable gauge block	12
33/531	Taper	29
33/532	External	19
33/506	Target, weapon, or weapon projectile	46
33/562	Template	422
33/563	Single sheet type	146
33/564	Alphabetical or numerical symbol type	27
33/565	Geometrical figure, three dimensional to two dimensional figure or curve	53
33/566	Line or guide	90
33/201	Tool	43
33/202	Saw	28
33/501.7	Tooth testing (e.g., gear, rack)	25
33/501.8	By electrical comparison	11
33/501.9	Including a probe	35
33/501.13	By pair of engaged gears	20
33/501.14	By probe	21
33/501.16	Including a master	4
33/501.17	Plural probes	2
33/501.18	Only two	8
33/501.15	Teeth spacing	7
33/501.19	By rotary master	15
33/501.11	Implement type	5
33/501.12	Internal	3
33/528	Wall panel outline marker for utility	125
33/203	Wheel	122
33/203.18	Axle, vehicle, or wheel supported	275
33/203.19	Plane and radius	29
33/203.2	Trammel	15
33/203.15	Floor supported, wheel contacting	48
33/203.16	Plane and radius	21
33/203.17	Trammel	10
33/203.21	Trammel	5
33/203.11	Tread contour	16
33/203.1	Watch	0
33/203.12	With wheel supporting means	84
33/203.14	Pivoted or sliding scuff board	27
33/203.13	Roller or drum	37
33/502	With calibration device or gauge for nuclear reactor element	193
33/504	With computer responsive to contact probe	160
33/523	With conveying wheel support	24
33/523.1	For railway track	22
33/523.2	With recording means	6
33/666	With point marker	80
33/678	Angularly adjustable about an axis	5
33/667	For door or drawer hinge, pull or securing means	21
33/668	For windup tape or tape casing, or marker attachment for tape	79
33/670	Having marker centering means	15
33/671	For marking center of a hole	6
33/673	Having adjustable workpiece-contacting centering means	4
33/674	Pivoted caliper workpiece-contacting means	3
33/675	Rack and pinion operating workpiece-contacting means	6
33/672	Having diverging-angle bisector workpiece-contacting members with marker on angle bisector	9
33/676	Having workpiece-contacting tapered centering means	0
33/677	Having workpiece-contacting device with marking to align with workpiece marking	5
33/679	Marker located with respect to two different directions	11
33/669	Plural markers	34
33/571	With scale	16
33/549	With support for gauged article	204
33/550	Concentricity	112
33/555	Having indicator of probe position or movement	102
33/551	Profile	175
33/552	Having plural contact members	103
33/553	Member contacts successive points on the article	64
33/554	With recording of contact member position at each point on the article	67
33/568	Work support adjustment	121
33/569	Rotary	28
33/570	Pin and slot type	8
33/573	Work support	102
33/300	Indicator of direction of force traversing natural media	16
	Indicator of direction of force traversing natural media
33/347	Attaching means (i.e., adhesive, magnetic or vacuum viewing aid)	58
33/304	Borehole direction or inclination	144
33/312	Electrical telemetering to read-out	48
33/305	Etching or marking liquid determines orientation	4
33/306	Fluid (e.g., drilling fluid, etc.) responsive	5
33/307	Varied pressure or pressure pulses representative	16
33/313	Inclination and direction indications	107
33/314	Indicator image projected on sensitized record (e.g., photographic, etc.)	8
33/308	Pendulum mounted or directed marker	17
33/310	Includes magnetic directional indicator	8
33/309	Radiant energy or electrically produced marking	6
33/311	Record movable to marking position	4
33/354	Combined	64
33/351	Diverse directional indicator	9
33/352	Includes magnetic compass	41
33/353	Line plumb and bubble level	6
33/316	Gyromagnetic compass	18
33/317R	Electrical telemetering	4
33/317D	Differential disparity correction	4
33/318	Gyroscopically controlled or stabilized	63
33/328	Attitude indicator (i.e., pitch or bank)	25
33/329	Gyroscope mounted, lever indicator and skyplate	6
33/330	Spherical indicator	7
33/320	Geographic position indication (i.e., latitude or longitude)	19
33/324	Gyroscopic compass	72
33/327	Fluid, suspension or control	26
33/326	Selective correction for deviation	22
33/325	Transmission system for remote readout	4
33/319	Magnetic compass	10
33/321	Plural gyroscopes (e.g., reference platform, etc.)	48
33/323	Directive gyroscope stabilized by auxiliary gyroscope	4
33/322	Diverse indications	5
33/365	Level or plumb, terrestrial gravitation responsive	102
	Level or plumb, terrestrial gravitation responsive
33/376	Add-on-type reference-surface section	29
33/368	Arresting means for movable indicator	3
33/366.11	Electrically actuated signal or indicator	102
33/366.15	Fluent sensor	36
33/366.17	Having buoyant control element	14
33/366.18	Having fluent material reactive circuit control element (e.g., inductive)	14
33/366.19	Capacitive sensor	35
33/366.16	Having light or radiant energy detecting circuit control element	48
33/366.21	Having resistive or contact circuit control element	36
33/366.22	By multiple circuit paths through conductive fluid	28
33/366.23	Having light or radiant energy detecting circuit control element	43
33/366.24	Having pendulum sensor	75
33/366.25	Having reactive circuit control element (e.g., inductive, capacitive)	32
33/366.26	Having resistive or contact circuit control element	23
33/366.27	Indicator details	24
33/366.12	Plural nonparallel axes or plural orientation sensors	81
33/366.13	With compensation of sensed quantity (e.g., acceleration)	19
33/366.14	With pulse or digital processing circuit component	62
33/369	Line level type	15
33/377	Liquid type, upper surface utilizing	63
33/379	Bubble	166
33/380	Adjustable size	0
33/389	Bubble-position indicia on reference-surface section	22
33/384	Liquid container adjustable on reference-surface section	45
33/388	Adjustment indicium	16
33/385	Cam-type adjuster (e.g., gear, screw, wedge, etc.	13
33/387	Adjustment indicium	8
33/386	Opposing spring	10
33/381	Plural	52
33/382	Coacting at an angle	47
33/383	Relatively adjustable	9
33/390	Universal, or plural indicating sections on container	64
33/378	Float or piston	22
33/391	Pendulum	133
33/397	Gimbal mounted	19
33/399	Indicium adjustably fixed to reference-surface section or to weight	12
33/400	Cam-type adjuster (e.g., gear, screw, etc.)	0
33/396	Liquid buoyed	30
33/402	Means limiting swing	21
33/401	Motion transmitting mechanism drives indicator (e.g., gearing, magnetic coupling)	14
33/392	Plumb line (i.e., flexible, line suspended plumb bob)	75
33/393	Line take-up reel	17
33/394	Spring biased	10
33/395	Plural, coacting in intersecting planes	19
33/398	Weight, variable quantity or center of gravity	13
33/367	Plural, similar, separable liquid columns system	61
33/374	Relatively movable, coacting, reference-surface sections	64
33/375	Affecting level or plumb indication	23
33/370	Work, or workman, attaching means	82
33/371	Requiring no modification of the work	100
33/372	Elastic bias type clamping	28
33/373	Encircling clamp, loop, or strap	42
33/355R	Magnetic field responsive	175
33/355D	Dip aligning needle	10
33/363R	Electrical telemetering	30
33/363L	Electrical contact pickoff	2
33/363N	Electrolytic liquid pickoff	2
33/363Y	Fluid jet or pressure pickoff	0
33/363K	Photoelectric pickoff	44
33/363Q	Resistance, capacitance, or inductance pickoff	19
33/361	Electro-magnet or inductor (e.g., flux valve, etc.)	172
33/362	Inductor rotated or vibrated	10
33/356	Error indicator, preventor, or compensator	251
33/357	Error-producting-field minimizing	44
33/358	Adjustable positioned permanent magnet	6
33/359	Pivoted adjustment	4
33/364	Liquid buoyed magnetic needle	51
33/360	Utilizing cathode-ray tube or photoelectric cell	5
33/301	Process	17
33/302	Borehole or tube interior study	63
33/303	Including calculation or comparison	12
33/338	Railway rail spacing and inclination	31
33/333	Structurally installed including relation to feature thereof	89
33/334	Hand implement (e.g., tool, rifle, camera, etc.)	96
33/315	Thermally sensitive	5
33/335	Vehicle running gear, or headlight, inclination	36
33/337	Axle supported	11
33/336	Wheel supported	39
33/343	With angle or shape determination	24
33/339	With cord-type straight-line guide or holder therefor	24
33/344	With damper or governor for sensor	14
33/346	Fluid	25
33/345	Magnetic	18
33/342	With independent linear measurement	16
33/332	With marker	14
33/340	With measurement in plural directions or of shape	7
33/341	With variable angle indication	8
33/349	With preselected direction indicator	30
33/350	With protector or shock absorber	7
33/331	With recorder	1
33/348	With viewing aid (i.e., illuminator or illumination director)	54
33/348.2	Spirit level electric illuminator	20
33/DIG.4	Interferometer	7
33/DIG.1	Magnetic	160
33/DIG.11	Materials	10
33/DIG.12	Mechanical expedients	1
33/1R	Miscellaneous	18
33/1A	Aerial photo	17
33/1AP	Angle polysection	9
33/1N	Angular measurement	232
33/1PT	Angular position transducer	304
33/1F	Article subdividing	11
33/1CF	Character forming	1
33/1K	Copy aids and perspective drawing	50
33/1C	Curve and chart analysis	45
33/1E	Dip and strike	12
33/1H	Earth	105
33/1D	Indexing and verniers	21
33/1BB	Inspection	71
33/1G	Layout	87
33/1DD	Light direction	14
33/1LE	Line engaging	58
33/1MP	Multipolar	21
33/1L	Optical readout	19
33/1B	Printed sheet	111
33/1SP	Radius and spiral	2
33/1Q	Railroad	72
33/1CC	Remote point locating	43
33/1HH	Seismic	12
33/1SB	Simulating calculators	36
33/1SC	Astronomical	9
33/1SD	Flat multisheet	71
33/1SA	Spherical	4
33/1P	Sonic wave	3
33/1S	Statistical measurements	5
33/1AA	Tables-layout	15
33/1T	Theodolite-optical readout	12
33/1V	Volume measurement	35
33/1M	X-y motion	532
33/DIG.10	Outlet box	130
33/DIG.3	Photoelectric	24
33/DIG.15	Piston position indicator	23
33/DIG.17	Piston ring and bearing race gauging	12
33/574	Point marker guide	30
33/575	Button or buttonhole marker guide	2
33/576	With workpiece support	2
33/579	For marker movement in direction of marker axis	9
33/578	For plural markers	11
33/577	With support for workpiece	7
33/DIG.9	Rectangular proportioner	23
33/DIG.7	Ribbon and wires	4
33/18.1	Scriber	207
33/26	Compound curved and straight-line	32
33/27.01	Curved line	44
33/27.04	Circle forming frame support	9
33/27.06	Circle forming pin and jointed arm	5
33/27.05	Circle forming roller	4
33/27.07	Circle forming rotating table	9
33/27.02	Compass	46
33/27.03	Beam type	106
33/27.031	With scoring means	16
33/27.032	Including scale	22
33/27.033	With screw adjustment means	1
33/27.08	Conic section	1
33/30.1	Ellipsograph	28
33/30.5	Flexible cord type	6
33/30.4	Harmonic component	6
33/30.3	Pattern follower	2
33/30.2	Pivoted circular pattern	6
33/30.7	Planetary scriber arm	5
33/31	Right-angle guides	22
33/30.6	Sliding leg	10
33/28	Lens	38
33/27.12	Pattern follower	25
33/27.11	Rose engine	37
33/27.1	Sine curve	3
33/27.09	Spiral	3
33/29	Stair	1
33/21.1	Curved surface	26
33/22	Pantographic	3
33/21.3	Pipe junction	23
33/21.2	Spherical	8
33/21.4	Tumbler engraving	2
33/19.1	Graduating	0
33/19.3	Circular	1
33/19.2	Straight-line	7
33/23.01	Pantographic	24
33/23.09	Human form	1
33/24.1	Multiplane	4
33/24.3	Coaxial styli	2
33/24.2	Pendulum	6
33/23.05	Opposite replica	4
33/25.1	Parallelogram type	25
33/25.4	Progressive lettering	5
33/25.2	Simple parallelogram	8
33/25.5	Tandem pantographs	3
33/25.3	Universally parallel bar	1
33/23.08	Pattern follower	15
33/23.07	Pattern grading	0
33/23.06	Plural reproduction	2
33/23.02	Single beam	7
33/23.04	Sliding pivot	7
33/23.03	Superposed carriages	18
33/23.1	Telautograph	1
33/23.11	Template and stylus details	26
33/41.1	Parallel line	9
33/42	Edge guided	166
33/43	Bevel set	3
33/44	Multimarkers	9
33/41.2	Lettering guide	5
33/45	Machine type	2
33/41.4	Multi-marking	22
33/41.5	Profile tracing	14
33/41.3	Rotary marker	3
33/41.6	Single marker with spacing guide	13
33/18.3	Perspective drawing	9
33/20.1	Sight-line controlled	5
33/20.2	Course tracking	0
33/20.3	Perspective view tracing	6
33/20.4	Stereoscopic mapping	12
33/32.1	Straight-line	30
33/33	Clapboard	3
33/34	Ink	8
33/39.1	Blank space	5
33/39.2	Hand pen	1
33/37	Rotary markers	8
33/38	Blank space	1
33/35	Traveling markers	5
33/36	Rotary	11
33/32.3	Moving scriber	42
33/32.4	And sheet	10
33/32.2	Portable	26
33/40	Set shift	2
33/32.7	Sheet support and handling details	6
33/32.5	Stationary scriber and moving support or sheet	4
33/32.6	Moving sheet	13
33/18.2	Writing	28
33/DIG.14	Spline and gear	6
33/227	Straight-line light ray type	120
33/229	Aerial bomb sight	1
33/230	Gyroscopically stabilized	2
33/231	With ground speed indicator	0
33/286	Alignment device	567
33/289	Game ball (e.g., football, etc.)	29
33/287	Railway track	67
33/288	Vehicle chassis, running gear or headlamp	340
33/262	Body related	31
33/268	Celestial	60
33/269	Time computing	17
33/270	Including gnomonic indicator (e.g., sundial, etc.)	53
33/271	And compass	13
33/275R	Combined	31
33/275G	With gyroscope	14
33/285	Horizontal angle measurer	48
33/299	Instrument support	56
33/290	Level (i.e., surveyor's type)	156
33/291	Self leveling	101
33/292	With tubular sighting means (e.g., telescope, etc.)	40
33/232	Marine or aircraft ground speed indicator	0
33/276	Multisight line	37
33/277	Common viewpoint	50
33/278	Relatively movable	12
33/279	Angularly and rectilinearly	10
33/280	Each separately adjustable	7
33/228	Process	69
33/297	Reticle	27
33/298	Adjustable	26
33/293	Rod or target	169
33/296	Extensible rod sections	41
33/294	Self computing type rod	26
33/295	With leveling or plumbing adjunct	34
33/263	Structurally installed	42
33/265	Archery bow	438
33/266	Camera	12
33/264	Vehicle	141
33/281	Vertical and horizontal angle measurer	82
33/282	Vertical angle	30
33/283	Having gravity responsive indicating means (e.g., pendulum, etc.)	54
33/284	Including distance finding feature	22
33/272	With magnetic compass	21
33/273	And level or plumb	23
33/274	With straight edge instrument or chart	12
33/267	With telemetric means	9
33/403	Straightedge type	55
33/430	Base attached	80
33/443	Both ends connected	34
33/444	By cord and roller	15
33/445	By rack and pinion	4
33/446	One end moveable along straightedge	5
33/436	Linear counter rule	3
33/431	Navigation	43
33/432	Perspective drawing	25
33/434	With parallel straightedge arrangement (i.e., drafting machine)	18
33/433	With t-square straightedge	6
33/435	Rotary base	15
33/447	Set shift, positively	12
33/438	Universal parallelism arrangement	42
33/441	Double linkage	4
33/442	With counterbalance	0
33/439	Wheel and band	3
33/440	With counterbalance	5
33/437	With guide or catch for t-square type	19
33/411	Clapboard marking	9
33/451	Combined with level	178
33/413	Cord type	56
33/414	With chalking feature	88
33/415	Multiplane angularly adjustable	14
33/416	Roof framing	9
33/417	Having rafter cut indicia (e.g., pitch, rise, etc.)	13
33/495	Pivot joints	22
33/496	180 degree limit	3
33/497	Locking	6
33/498	90 degree limit	2
33/499	Locking	9
33/500	Locking	17
33/482	Plural nonadjustable straightedges forming nonright angles	33
33/474	Plural straightedges nonadjustably fixed at right angles (e.g., t-square, triangles, squares)	120
33/478	Folding or separable	27
33/477	Lettering guide	6
33/481	Multiplane	55
33/479	T-square	24
33/480	Try square	18
33/475	With right angle truing adjustment	6
33/476	With special scale markings	65
33/452	Plural straightedges, relatively moveable	42
33/455	Intercontrolled bevel blades	10
33/456	Multipivoted straightedges	28
33/458	Folding rule type	19
33/457	Navigational	18
33/459	Two straightedges pivoted at the ends of a central straightedge	7
33/460	At least one pivot is sliding	6
33/461	Central straightedge longitudinally adjustable	5
33/462	Central straightedge longitudinally adjustable	8
33/463	Three straightedges forming a triangle	10
33/454	Parallel type	19
33/465	Single pivot	67
33/466	Handsaw attachment	0
33/467	Lettering guide	1
33/472	Pivoted straightedge and sliding nonpivoted	15
33/473	Sliding pivotal adjustment	18
33/468	T-head with pivoted straightedge	12
33/469	Locking	12
33/470	Sliding	8
33/471	With angle indicating means	119
33/464	Sliding	98
33/453	Triangulation (e.g., solving trigonometric functions)	11
33/483	Rules	61
33/492	Edge details	34
33/493	Particular material	29
33/494	Special scale markings	173
33/484	With attachment	64
33/485	For performing diverse function	72
33/489	For supporting above work surface	17
33/486	Index	12
33/487	For subdividing	8
33/488	Optical (e.g., magnifying)	23
33/490	Located on end	6
33/491	Selectable	9
33/412	Shaft aligning	82
33/429	Square and fixed straightedge	47
33/418	Square and pivoted straightedge	24
33/419	And sliding	25
33/422	Having circumferential pivot, only	4
33/420	Straightedge as a hypotenuse of the square	4
33/421	Having angle or slope indicating means	10
33/423	With indicia for rafter cuts	18
33/424	With protractor	28
33/425	And sliding straightedge	5
33/426	Located on straightedge	6
33/427	Square and sliding nonpivotal straightedge(s)	61
33/428	Straightedge bisects right angle of square (i.e., centering square)	5
33/404	Wall guide and plumb (e.g., building construction)	53
33/406	Adjustable vertically	13
33/405	Batter board type	14
33/407	Building is the vertical support	22
33/408	Connected to brick	23
33/409	By line tension only	12
33/410	Having adjustable clamp	17
33/448	With means for moving straightedge over a surface	13
33/449	By rollers	25
33/450	Set shift	7
33/DIG.19	Thermal expansive	14
33/DIG.20	Tile	37
33/DIG.13	Wire and strain gauges	54
33/DIG.21	With laser	390