| Class Number |
Class Name |
No. of Patents |
| 434/28 |
Aircraft wind drift simulation |
3 |
| 434/262 |
Anatomy, physiology, therapeutic treatment, or surgery relating to human being |
369 |
| 434/267 |
Anatomical representation |
218 |
| 434/270 |
Head or part thereof |
45 |
| 434/271 |
Eye |
28 |
| 434/269 |
Including superposed sheets respectively depicting different body parts |
12 |
| 434/272 |
Internal organ, blood vessel, or nerve |
137 |
| 434/273 |
Female genital |
28 |
| 434/268 |
Simulation of flow of body liquid |
52 |
| 434/274 |
Skeleton or bone |
69 |
| 434/275 |
Palpation or manual force application (e.g., chiropractic adjustment, etc.) |
7 |
| 434/265 |
Cardiac massage or artificial respiration |
83 |
| 434/263 |
Dentistry |
87 |
| 434/264 |
Means mounting upper and lower tooth models for relative movement |
24 |
| 434/266 |
Simulation of body sound |
29 |
| 434/72 |
Architecture, interior decoration, or industrial plant layout |
61 |
| 434/74 |
Brick, tile, roofing, or siding |
11 |
| 434/75 |
Curtain or wall, ceiling, or floor cover |
18 |
| 434/79 |
Building or room interior represented pictorially or by model |
25 |
| 434/76 |
Light, mirror, or image projector included in display or demonstration |
7 |
| 434/78 |
Plaque (e.g., disk, etc.) turnable relative to index (e.g., window in card, etc.) to selectively align different points on plaque therewith |
5 |
| 434/77 |
Roller-mounted belt or strip included in display or demonstration |
2 |
| 434/73 |
Magnet included in display or demonstration |
16 |
| 434/80 |
Representation of furniture, bathroom or kitchen accessory, or cabinet placeable in different locations on representation of room interior |
27 |
| 434/106 |
Astrology |
26 |
| 434/308 |
Audio recording and visual means |
211 |
| 434/318 |
Audio recording on disk |
47 |
| 434/309 |
Common carrier for visual means and audio recording |
62 |
| 434/311 |
Card, sheet, or block |
34 |
| 434/312 |
Reading head moved past stationary audio track |
5 |
| 434/313 |
Manually |
5 |
| 434/310 |
Carrier used with image projector |
9 |
| 434/314 |
Image projector |
28 |
| 434/316 |
With code on audio carrier for controlling operation of apparatus |
17 |
| 434/315 |
With code on image carrier for controlling operation of apparatus |
10 |
| 434/317 |
Visual information in book form |
174 |
| 434/319 |
Audio recording |
88 |
| 434/320 |
Listener's voiced response recorded |
27 |
| 434/321 |
Operation of apparatus controlled by listener's response to question or problem |
45 |
| 434/107 |
Business or economics |
65 |
| 434/110 |
Coin or currency identification or counterfeit detection |
16 |
| 434/109 |
Record keeping |
15 |
| 434/108 |
Work schedule |
21 |
| 434/307R |
Cathode ray screen display and audio means |
430 |
| 434/307A |
Karaoke |
266 |
| 434/111 |
Celestial navigation |
10 |
| 434/112 |
Communication aids for the handicapped |
192 |
| 434/116 |
Converting information to sound |
59 |
| 434/113 |
Tactile reading aid (e.g., braille, etc.) |
134 |
| 434/115 |
Braille writing slate |
24 |
| 434/114 |
Converting information to tactile output |
132 |
| 434/117 |
Writing guide for the blind |
16 |
| 434/118 |
Computer logic, operation, or programming instruction |
398 |
| 434/432 |
Desk, table, or study booth |
28 |
| 434/1 |
Detection or range determination of distant object by apparatus using sensor of electromagnetic or sound energy |
24 |
| 434/2 |
Radar |
74 |
| 434/3 |
Cathode ray screen display simulated by light means (e.g., light spot projected onto screen, etc.) |
8 |
| 434/5 |
Interference simulation |
9 |
| 434/4 |
Optical means (e.g., image projector, etc.) or light or sound sensor (e.g., television camera, microphone, etc.) included in a simulator |
26 |
| 434/6 |
Sonar |
24 |
| 434/7 |
Interference simulation |
7 |
| 434/10 |
Simulation by use of sound recording |
4 |
| 434/8 |
Simulation of doppler shift of echo |
5 |
| 434/9 |
Simulation of plural detector system |
10 |
| 434/126 |
Fluid flow or wave motion |
33 |
| 434/127 |
Food |
76 |
| 434/128 |
Game, board or table type |
85 |
| 434/129 |
Using playing card |
50 |
| 434/130 |
Geography |
30 |
| 434/150 |
Map or terrain model |
53 |
| 434/153 |
Means for facilitating location of different points on map |
41 |
| 434/152 |
Relief |
27 |
| 434/151 |
With model or sample of natural or man-made item associated therewith |
17 |
| 434/149 |
Means indicating time at different points on earth |
5 |
| 434/131 |
Terrestrial globe or accessory therefor |
36 |
| 434/137 |
Collapsible or arranged for convenient assembly, disassembly, or storage |
15 |
| 434/138 |
Inflatable |
2 |
| 434/133 |
Having diverse use (e.g., pencil box, etc.) |
7 |
| 434/134 |
Having magnet associated therewith |
6 |
| 434/135 |
Having plural planar or curved surfaces (e.g., flat or frustoconical surfaces, etc.) |
12 |
| 434/132 |
Relief globe |
9 |
| 434/136 |
Rotated by mechanical drive |
19 |
| 434/145 |
With internal light |
18 |
| 434/147 |
With map segment attachable thereto (e.g., continent, nation, etc.) |
18 |
| 434/143 |
With means demonstrating solar illumination of earth |
12 |
| 434/144 |
With means demonstrating wind currents over earth |
1 |
| 434/141 |
With means indicating distance between points on earth |
4 |
| 434/142 |
With means indicating time at different points on earth |
10 |
| 434/139 |
With means representing vehicle moving relative to earth |
1 |
| 434/140 |
Space vehicle |
1 |
| 434/146 |
With means to facilitate finding or reading indicia thereon |
11 |
| 434/148 |
With suspension type support |
0 |
| 434/154 |
History or genealogy |
23 |
| 434/155 |
Identification of person or handwriting analysis |
29 |
| 434/156 |
Language |
228 |
| 434/159 |
Alphabet letter formation, recognition, or sequencing |
111 |
| 434/161 |
Letter displayed upon manipulation of mechanism |
6 |
| 434/160 |
Letter formed by segments |
30 |
| 434/157 |
Foreign |
178 |
| 434/158 |
Shorthand |
2 |
| 434/185 |
Speech |
207 |
| 434/167 |
Spelling, phonics, word recognition, or sentence formation |
215 |
| 434/170 |
Color used in teaching means |
63 |
| 434/177 |
Crossword puzzle aid |
19 |
| 434/176 |
Display of word or picture upon correct manipulation of teaching means |
32 |
| 434/169 |
Electrical component included in teaching means |
258 |
| 434/171 |
Letter or word bearing elements (e.g., cards, blocks, etc.) with interfitting surface configurations |
50 |
| 434/172 |
Letter-bearing elements (e.g., cards, blocks, etc.) selectively aligned to form word or sentence |
106 |
| 434/173 |
Letter-bearing belt or reel-mounted strip |
4 |
| 434/175 |
Letter-bearing elements slidable between different grooves |
10 |
| 434/174 |
Rotatably mounted letter bearing element |
26 |
| 434/168 |
Magnet included in teaching means |
27 |
| 434/178 |
Reading |
203 |
| 434/184 |
Directionality training (e.g., for dyslexics, etc.) |
20 |
| 434/179 |
Speed |
30 |
| 434/181 |
Apertured mask moved past reading matter carrier |
11 |
| 434/183 |
Pacer moved down reading matter carrier |
5 |
| 434/180 |
Projected image of reading matter |
9 |
| 434/182 |
Reading matter carrier moved past viewing position |
5 |
| 434/162 |
Writing or printing by hand |
40 |
| 434/166 |
Mechanical means for teaching proper position of body part while writing |
19 |
| 434/163 |
Tracing |
15 |
| 434/164 |
Slotted or grooved path |
18 |
| 434/165 |
Writing sample included in teaching means |
12 |
| 434/186 |
Magnetic or gyro compass |
3 |
| 434/188 |
Mathematics |
120 |
| 434/191 |
Arithmetic |
108 |
| 434/203 |
Apertured elements threaded on elongate means (e.g., abacus, etc.) |
34 |
| 434/204 |
Elements manually placed on or removed from elongate means during use |
8 |
| 434/208 |
Ball, block, or disk |
70 |
| 434/192 |
Chalkboard or equivalent means having readily erasable surface |
5 |
| 434/207 |
Color used in teaching means |
52 |
| 434/209 |
Division or multiplication |
85 |
| 434/201 |
Electric component included in teaching means |
87 |
| 434/197 |
Indicia-bearing belt or reel-mounted strip |
3 |
| 434/202 |
Keyboard or like manually manipulated array (e.g., slides, levers, etc.) |
23 |
| 434/195 |
Manually manipulated elements having size proportional to numeric value |
50 |
| 434/196 |
Fraction representing elements |
14 |
| 434/193 |
Manually manipulated numeral shaped elements |
17 |
| 434/200 |
Manually manipulated pin or peg |
21 |
| 434/205 |
Means having number of marks (e.g., dots, etc.) or associated physical units (e.g., sticks, indentations, etc.) corresponding to numeric value |
42 |
| 434/194 |
Numeric value represented by weight placed on balance |
14 |
| 434/210 |
Place value relative to decimal point |
11 |
| 434/198 |
Plaque (e.g., disk, etc.) turnable relative to index (e.g., window in card, etc.) to selectively align different points on plaque therewith |
15 |
| 434/199 |
Plaque slidable relative to index (e.g., window in card, etc.) to selectively align different points on plaque therewith |
11 |
| 434/206 |
Rotatable wheel-shaped element (e.g., ring, disc, cylinder, etc.) having indicia on perimeter thereof |
17 |
| 434/189 |
Base conversion or use of base other than ten |
20 |
| 434/211 |
Geometry, trigonometry, or physical mathematic model structure |
77 |
| 434/216 |
Demonstration means using filament (e.g., string, etc.) to define geometric shape |
9 |
| 434/215 |
Demonstration means using relatively turnable elements |
13 |
| 434/214 |
Property of circle or ellipse |
10 |
| 434/213 |
Property of sphere or spheroid |
4 |
| 434/212 |
Pythagorean theorem |
6 |
| 434/190 |
Magnet included in teaching means |
14 |
| 434/365 |
Means for demonstrating apparatus, product, or surface configuration, or for displaying education material or student's work |
299 |
| 434/372 |
Aircraft, spacecraft, or component thereof |
12 |
| 434/427 |
Apertured mask placed over information bearing surface |
8 |
| 434/377 |
Beauty aid or perfume |
15 |
| 434/403 |
Block or like manually manipulatable object having indicia or picture on face thereof, or three-dimensional form for demonstrating shape |
77 |
| 434/378 |
Burial means or grave maker |
5 |
| 434/408 |
Chalkboard or equivalent means having easily erasable surface |
99 |
| 434/425 |
Artificial slate formed of plural constituents |
10 |
| 434/421 |
Attached to wall |
12 |
| 434/417 |
Chalkboard cleaning means, chalk or eraser holder, or chalk dust receiver |
22 |
| 434/411 |
Erasable surface on endless belt |
13 |
| 434/412 |
Erasable surface on reel-mounted sheet |
8 |
| 434/422 |
Hand-carried school slate |
5 |
| 434/424 |
With cushion or noise muffler attached to slate frame |
2 |
| 434/423 |
With rigid corner cap or separate means holding slate frame elements together |
4 |
| 434/410 |
Mark formed by bonding sheet to underlying surface with pressure-applying stylus (e.g., magic slate, etc.) |
40 |
| 434/409 |
Mark formed by magnetic attraction between materials (e.g., particles in sheet made visible by movement of magnet over sheet, etc.) |
51 |
| 434/419 |
Pivotal about horizontal axis |
8 |
| 434/413 |
Separate elements having erasable surfaces |
12 |
| 434/414 |
Relatively swingable |
10 |
| 434/420 |
Vertically adjustable |
5 |
| 434/416 |
With chart, illustration, or indicia |
25 |
| 434/415 |
With pencil holder or sharpener |
23 |
| 434/418 |
With ruler, straight edge, or holder therefor |
5 |
| 434/429 |
Demonstration or display means combined with storage or collection means (e.g., receptacle, scoop, etc.) |
60 |
| 434/379 |
Demonstration or display of electrical apparatus or component |
39 |
| 434/380 |
Motor or generator |
13 |
| 434/430 |
Display panel, chart, or graph |
110 |
| 434/431 |
Showing seat or desk location |
4 |
| 434/426 |
Endless belt or reel-mounted strip having indicia thereon |
34 |
| 434/381 |
Fluid filter |
1 |
| 434/382 |
Household equipment |
9 |
| 434/383 |
Refrigerator or air conditioner |
3 |
| 434/384 |
Vacuum cleaner |
0 |
| 434/385 |
Insulation |
2 |
| 434/386 |
Jewelry or monogram |
6 |
| 434/406 |
Jigsaw elements having indicia thereon |
21 |
| 434/373 |
Land or water vehicle (e.g., automobile, boat, etc.) or component thereof |
32 |
| 434/374 |
Servicing aid (e.g., lubrication chart, etc.) |
4 |
| 434/375 |
Shock absorber or spring |
2 |
| 434/376 |
Tire, wheel, or brake |
8 |
| 434/387 |
Lock or safe |
2 |
| 434/388 |
Lubricant or lubrication |
2 |
| 434/401 |
Machine mechanism |
19 |
| 434/407 |
Manually manipulated pin or peg inserted into display board |
13 |
| 434/367 |
Means for comparing characteristics of plural articles or materials |
21 |
| 434/369 |
Means for displaying article at various stages of manufacture or treatment |
7 |
| 434/366 |
Means for simulating abnormal condition |
27 |
| 434/389 |
Mechanical power source (e.g., engine, windmill, etc.) |
14 |
| 434/390 |
Mining |
1 |
| 434/371 |
Mirror for displaying something (e.g., apparel, hair style, etc.) as it would appear when associated with viewer |
20 |
| 434/391 |
Pen or pencil |
2 |
| 434/428 |
Pictorial demonstration or display |
68 |
| 434/404 |
Plaque (e.g., disk, etc.) turnable relative to index (e.g., window in card, etc.) to selectively align different points on plaque therewith |
44 |
| 434/405 |
Plaque slidable relative to index (e.g., window in card, etc.) to selectively align different points on plaque therewith |
22 |
| 434/402 |
Rotatable element having indicia or picture on perimeter thereof |
25 |
| 434/392 |
Sport equipment |
10 |
| 434/368 |
Superposed indicia bearing sheets, one depicting interior view |
12 |
| 434/394 |
Timepiece or component thereof |
4 |
| 434/393 |
Toy |
28 |
| 434/370 |
Transparent means permitting interior view |
29 |
| 434/395 |
Wearing apparel |
23 |
| 434/396 |
Displayed on doll or manikin |
12 |
| 434/397 |
Footwear |
4 |
| 434/398 |
Hose |
0 |
| 434/399 |
Headwear |
2 |
| 434/400 |
Neckwear |
4 |
| 434/187 |
Measurement of length or volume |
15 |
| 434/217 |
Meteorology |
6 |
| 434/433 |
Miscellaneous |
67 |
| 434/218 |
Nuclear energy or radioactive radiation detection or simulation |
42 |
| 434/219 |
Occupation |
213 |
| 434/220 |
Air traffic control |
6 |
| 434/221 |
Audiometry |
0 |
| 434/222 |
Code communication |
6 |
| 434/223 |
Visual signalling |
4 |
| 434/225 |
Dairying, farming, ranching, or other occupation involving care of plants or animals |
6 |
| 434/224 |
Electricity or electronics |
66 |
| 434/226 |
Fire fighting |
75 |
| 434/227 |
Keyboard operation (e.g., typing, key punching, etc.) |
61 |
| 434/228 |
Means for selectively illuminating character on simulated keyboard |
5 |
| 434/230 |
Means for selectively producing sound of character |
0 |
| 434/229 |
Means for selectively rendering key operable or inoperable |
10 |
| 434/233 |
Means on hand or finger for indicating finger to be used |
14 |
| 434/231 |
Practice keyboard having individually depressible keys |
5 |
| 434/232 |
With means to display character upon depression of key |
7 |
| 434/234 |
Soldering or welding |
17 |
| 434/11 |
Organized armed or unarmed conflict or shooting |
137 |
| 434/14 |
Aerial warfare |
40 |
| 434/15 |
Bombing |
10 |
| 434/16 |
Gunnery |
118 |
| 434/19 |
Gun aiming |
86 |
| 434/20 |
Cinematographic or cathode ray screen display |
87 |
| 434/23 |
Means (e.g., target, terrain model, etc.) marked or pierced to simulate projectile impact point |
22 |
| 434/21 |
Training apparatus using beam of infrared, visible light, or ultraviolet radiation |
128 |
| 434/22 |
Beam sensor included in apparatus |
155 |
| 434/24 |
Gun loading or projectile preparation (e.g., fuse setting, etc.) |
13 |
| 434/18 |
Gun recoil simulation |
35 |
| 434/17 |
Gunfire spotting |
13 |
| 434/27 |
Range finding |
18 |
| 434/12 |
Self-propelled projectile |
35 |
| 434/13 |
Launched underwater |
5 |
| 434/25 |
Water warfare |
6 |
| 434/26 |
Periscope view simulation |
3 |
| 434/235 |
Parliamentary procedure |
4 |
| 434/247 |
Physical education |
347 |
| 434/248 |
Basketball |
23 |
| 434/256 |
Body model with articulated parts |
14 |
| 434/249 |
Bowling |
18 |
| 434/250 |
Dancing |
29 |
| 434/258 |
Developing or testing coordination |
207 |
| 434/259 |
Associating dissimilar objects with apertures or pegs having matching size, shape, or color |
71 |
| 434/260 |
Manipulation of tool or fastener (e.g., zipper, shoelaces, etc.) |
65 |
| 434/261 |
Tracing |
10 |
| 434/251 |
Football, soccer, or rugby |
33 |
| 434/252 |
Golf |
187 |
| 434/257 |
Picture or image of body included in display or demonstration |
28 |
| 434/253 |
Skiing |
93 |
| 434/254 |
Swimming |
93 |
| 434/255 |
Traversing ground (e.g., crawling, running, etc.) |
65 |
| 434/236 |
Psychology |
389 |
| 434/238 |
Behavior or performance display (e.g., board for showing completed chores, etc.) |
118 |
| 434/237 |
Cooperation of plural pupils |
46 |
| 434/322 |
Question or problem eliciting response |
436 |
| 434/363 |
Card or sheet for receiving examinee's written, marked, or punched response |
40 |
| 434/364 |
With apertured overlay |
8 |
| 434/323 |
Cathode ray screen display included in examining means |
351 |
| 434/327 |
Correctness of response indicated to examine by self-operating or examinee actuated means |
126 |
| 434/335 |
By means including electrical component |
167 |
| 434/344 |
Correct answer illuminated |
9 |
| 434/337 |
Light detector |
16 |
| 434/339 |
Part of electric circuit completed when examinee depresses portion of sheet having electric conductor associated therewith |
25 |
| 434/338 |
Part of electric circuit completed when examinee places end of flexible lead, or means connected thereto (e.g., plug, etc.), in contact with another element |
27 |
| 434/340 |
Part of electric circuit completed when examinee places free element in contact with another element |
25 |
| 434/341 |
Correct answer indicator lamp carried by free element |
8 |
| 434/342 |
Question or problem located on endless belt or reel mounted strip |
4 |
| 434/336 |
Response of plural examinees communicated to monitor or recorder by electrical signals |
52 |
| 434/343 |
Size or shape of, or aperture in, free element controls indication of response correctness |
10 |
| 434/331 |
By optical element (e.g., mirror, color filter, lens, etc.) |
16 |
| 434/347 |
Correct answer displayed on side of element opposite side displaying question or problem |
24 |
| 434/348 |
Correct answer hidden until examinee moves element |
41 |
| 434/349 |
Means for receiving examinee's written response |
8 |
| 434/346 |
Correctness of response indicated when examinee physically alters element other than by marking it |
28 |
| 434/334 |
Hand-held element insertable to different depths in apertures respectively representing right and wrong answers |
9 |
| 434/329 |
Involving fluid flow |
1 |
| 434/328 |
Involving heat or chemical reaction |
24 |
| 434/330 |
Involving magnetic attraction |
13 |
| 434/333 |
Picture or pattern completed by examinee placing plaques bearing portions thereof in correct relation |
16 |
| 434/332 |
Reward dispensed for correct answer |
17 |
| 434/345 |
Size or shape of, or aperture in, free element cntrols indication of response correctness |
16 |
| 434/362 |
Electrical means for recording examinee's response |
377 |
| 434/353 |
Grading of response form |
107 |
| 434/354 |
Comparison of response form with standard answer form |
33 |
| 434/356 |
Electrical means sensing conductive mark representing response |
6 |
| 434/355 |
Light detector sensing response |
10 |
| 434/357 |
Means sensing aperture representing response |
2 |
| 434/359 |
Electrical means sensing conductive mark representing response |
11 |
| 434/358 |
Light detector sensing response |
31 |
| 434/361 |
Means perforating response form at correct answer location |
0 |
| 434/360 |
Means sensing aperture representing response |
0 |
| 434/324 |
Image projector included in examining means |
18 |
| 434/325 |
And light detector |
12 |
| 434/326 |
Mark transfer sheet (e.g., carbon paper, etc.) included in examining means |
8 |
| 434/350 |
Response of plural examinees communicated to monitor or recorder by electrical signals |
379 |
| 434/351 |
Wireless signals |
35 |
| 434/352 |
With means for indicating first examinee to respond |
17 |
| 434/239 |
Radio navigation |
7 |
| 434/240 |
Light sensor included in simulator of radio navigation equipment |
0 |
| 434/243 |
Simulated bearing or position or vehicle relative to radio transmitter or directional beam indicated to trainee by instrument |
13 |
| 434/242 |
Simulated radio signal generated by use of data storage means |
8 |
| 434/244 |
Simulation of radio directional beam carrying morse code signal |
1 |
| 434/241 |
Simulation of upwardly directed airfield or landing approach marker radio beam |
2 |
| 434/245 |
Religion |
29 |
| 434/246 |
Rosary |
10 |
| 434/276 |
Science |
48 |
| 434/284 |
Astronomy |
33 |
| 434/285 |
Representation of light generating celestial body |
9 |
| 434/287 |
Celestial globe |
9 |
| 434/288 |
And earth representation |
4 |
| 434/289 |
Finding or identifying aid |
16 |
| 434/286 |
Light spot |
35 |
| 434/290 |
Simulation of sun and earth |
4 |
| 434/292 |
And moon |
6 |
| 434/293 |
Moon model moved around earth model by mechanical or electrical means |
1 |
| 434/294 |
By belt drive |
0 |
| 434/291 |
Simulation of motion of earth and another major planet around sun |
12 |
| 434/295 |
Biology or taxidermy |
43 |
| 434/296 |
Specimen display |
49 |
| 434/297 |
Specimen enclosure |
9 |
| 434/298 |
Chemistry or metallurgy |
22 |
| 434/277 |
Crystal structure model or display having discrete element (e.g., geometric shape, light, etc.) representing atom |
8 |
| 434/299 |
Geology |
11 |
| 434/283 |
Means demonstrating physical property (e.g., osmotic pressure, solubility, etc.) of substance |
14 |
| 434/281 |
Model or display demonstrating structure or property of atom or radical |
14 |
| 434/282 |
Indicia chart (e.g., periodic table, etc.) |
6 |
| 434/278 |
Molecular model or display having discrete element representing atom or radical |
42 |
| 434/280 |
Atom or radical represented by element formed of sheet material |
2 |
| 434/279 |
Model having helical chain of elements (e.g., dna model, etc.) |
10 |
| 434/300 |
Physics |
46 |
| 434/301 |
Electricity or magnetism |
28 |
| 434/303 |
Optics |
11 |
| 434/302 |
Statics or dynamics |
39 |
| 434/304 |
Telling time or calendar reading |
65 |
| 434/305 |
Vehicle movement or traffic accident or condition |
17 |
| 434/29 |
Vehicle operator instruction or testing |
159 |
| 434/62 |
|
