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Class Information
Number: 89
Name: Ordnance >
Description: This class includes all guns adapted to be mounted or supported otherwise than by hand, all explosion-operated guns including hand and shoulder firearms, bomb dropping devices, and those gun combinations and subcombinations which are not provided for in other classes including mounts, supports, carriages, loading and hoisting mechanisms, shields.

Class Number	Class Name	No. of Patents
89/8	Accelerating	321
89/125	Automatic	1
89/194	Blow back breech block	21
89/197	Box magazine	20
89/195	Pistol grip magazine	9
89/196	Breech slide type	73
89/180	Breech block lock (positive or impositive)	20
89/182	Inertia member released lock	2
89/183	Blow back initiated	5
89/186	Nonaxial, rectilinear, breech block motion	9
89/184	Nonrectilinear breech block motion (e.g., tilting rotary, etc.)	8
89/185	Rotary and sliding	52
89/190	Pivoted locking member	35
89/188	Rotary locking member	33
89/187.01	Sliding locking member	22
89/187.02	Cylindrical or ball bearing	11
89/189	Toggle locking member	12
89/181	With latch	13
89/198	Buffers and brakes	98
89/159	Combined movable barrel and gas operated	10
89/128	Convertible gun operation (e.g., to nonautomatic, etc.)	39
89/132	Firing device operation or control (e.g., full automatic, etc.)	30
89/134	Disabled at predetermined angles of fire	10
89/135	Electrical	49
89/137	Interlocks between firing and cartridge feeding	16
89/138	Locks bolt open	25
89/153	Operates breech lock	5
89/139	Semi-automatic (e.g., double sear, etc.)	17
89/143	Alternate control of hammer and breech block or barrel	10
89/140	Convertible to full automatic	16
89/141	Breech block, barrel or hammer disconnected	15
89/142	With selective safety device	34
89/147	Hammer cocked and released by trigger	41
89/144	With means for disconnecting trigger and sear	20
89/145	By breech block or barrel motion	32
89/146	Hammer disconnected	9
89/133	Synchronizers	2
89/136	Triggers and/or remote control	36
89/154	With automatic hammer cocking and/or safety means	29
89/151	With automatic hammer	6
89/152	Operates breech lock	1
89/149	With automatic sear or sear release	13
89/150	With automatic sear or trigger safety	6
89/148	With selective safety device	71
89/191.01	Gas piston type	64
89/191.02	Annular piston	42
89/192	Gas piston compresses breech opening spring	18
89/193	Gas ports and/or regulators	65
89/179	Gas piston-type lock actuator carried by breech block (e.g., firing pin, etc.)	4
89/160	Movable barrel (e.g., rotary, etc.)	11
89/177	Barrel buffers and brakes	23
89/178	Barrel return means	9
89/161	Forwardly movable	25
89/162	Rearwardly movable	20
89/163	Barrel having motion in addition to axial, rectilinear	45
89/165	Long recoil	1
89/167	Nonaxial rectilinear breech block motion	3
89/166	Nonrectilinear breech block motion	2
89/168	Pivoted locking member or toggle lock	3
89/171	Nonrectilinear breech block motion (e.g., tilting rotary, etc.)	1
89/172	Rotary and sliding	9
89/176	Pivoted locking member	10
89/174	Rotary locking member	6
89/173	Sliding locking member	5
89/175	Toggle locking member	3
89/169	With accelerator and/or unlocking lever for breech mechanism	7
89/170	With barrel latch	2
89/164	With breech lock latch	2
89/158	Movable butt piece	2
89/155	Movable chamber type (e.g., revolver, etc.)	27
89/156	Operating as gas piston and/or recoil member	9
89/157	Recoiling barrel with revolving chambers	6
89/126	Plural gun, barrel or bore	16
89/127	Firing control	23
89/199	Receiver closures and/or breech block return means	45
89/129.01	Regulation of speed or rate of automatic fire	15
89/129.02	By regulating burst	21
89/131	By regulating time of release of hammer	8
89/130	By regulating time of return of breech block	14
89/14.05	Barrels	109
89/16	Composite	88
89/14.2	Flash shield	50
89/14.7	Lining, rifling, or making	17
89/14.8	Method of making multibore barrel	0
89/14.3	Recoil absorbers and climb arrestors	189
89/14.5	Recoil increasers	35
89/14.6	Sabot strippers	31
89/14.4	Silencers	86
89/14.1	With heat exchanger	47
89/15	Wound	22
89/1.51	Bomb, flare and signal dropping	132
89/1.55	Arming device	57
89/1.54	Bomb displaced from exterior of plane	78
89/1.52	Drop grenade	3
89/1.56	Electrical and radio releases and sighting	32
89/1.57	Explosive releases	55
89/1.59	Racks	37
89/1.58	Shackles	41
89/1.61	Sighting	1
89/1.53	Sway braces	31
89/1.6	Timing devices	1
89/17	Breech closures	20
89/26	Gas checks	54
89/18	Key locked	1
89/19	Screw	0
89/20.2	Interrupted	6
89/21	Fixed ammunition	1
89/20.4	Motor operated	2
89/22	Transverse	5
89/23	Sliding and swinging	3
89/24	Sliding	47
89/25	Swinging	13
89/33.01	Cartridge feeding	32
89/33.2	Belt feed	36
89/33.25	With rotary feeder	59
89/35.01	Belts	64
89/35.02	Disintegrating type	8
89/33.5	Cartridge feeding auxiliary feeder	15
89/33.02	Drum magazine	66
89/33.4	Empty shell receivers	32
89/34	Holders	183
89/33.03	Movable chamber	50
89/33.04	Selective feed	74
89/33.1	With magazine	74
89/33.14	Belt feed	70
89/33.16	With rotary feeder	59
89/33.17	With rotary feeder	47
89/33.05	With rammer separated breech block	17
89/1.4	Charging mechanisms for guns	55
89/1.16	Engine starters	0
89/4.05	Explosion opened breech	2
89/4.5	Blow back breech block	2
89/4.1	Rotary breech block	2
89/4.2	Transverse sliding breech block	5
89/1.14	Explosive operated apparatus (e.g., explosive door hinge, tool explosively actuated, band release, expansion of tube, cable cutter, explosively operated splitting wedges)	261
89/27.11	Firing devices	31
89/28.05	Electric	70
89/28.1	Electrical and mechanical	20
89/28.2	Training and firing	5
89/27.3	Gun firing actuators	17
89/27.14	Percussion firing	9
89/27.13	Primer fired	31
89/27.12	Safety	26
89/6	Fuse setters	31
89/6.5	Combined with projecting, launching or releasing devices	90
89/1.42	Gun handles	32
89/1.12	Gun heaters	2
89/1.34	Line throwing	55
89/45	Loading	92
89/46	Hoisting apparatus	111
89/47	Rammers	99
89/1.25	Lubricant injector	7
89/9	Machine guns	17
89/11	Axially moving breech block	48
89/12	Revolving barrels	56
89/13.05	Revolving cylinders	11
89/13.1	Nonparallel bores	2
89/1.13	Mine-destroying devices	200
89/1.1	Miscellaneous	120
89/37.01	Mounts	50
89/37.16	Aircraft type	31
89/37.22	Multiple guns on mount	21
89/37.19	On aircraft wing	13
89/37.18	On engine	0
89/37.17	Power operated	3
89/37.21	Retractable gun turret	3
89/37.02	Anti-aircraft	8
89/37.13	Bases	28
89/37.08	Counterbalances	10
89/38	Disappearing gun	17
89/39	Counterpoise	1
89/40.01	For field use	11
89/40.13	By separate transport carriage	7
89/40.11	Carriage suspended for firing	6
89/40.14	Components are separable for transport	4
89/40.07	Libers and caissons	12
89/40.04	Nonshielded motor driven guns	14
89/40.03	On armored car	40
89/40.05	On sleds	0
89/40.06	On tripods (i.e., for light guns)	14
89/40.16	Railroad type	0
89/40.15	Trail carriages and links	3
89/40.12	Traveling locks	9
89/40.02	Wheeled mortars	17
89/40.08	With hitches and couplings	5
89/40.09	With training spades	6
89/37.09	Leveling	12
89/37.03	Light machine gun type	31
89/37.11	Locks	19
89/37.05	Mortars	38
89/37.14	Reciprocating mounts	17
89/37.04	Rifle and pistol mounts	94
89/37.12	Spherical or oval bearing gun support	9
89/37.06	Submarine	6
89/41.01	Training mechanisms	40
89/41.17	Aiming device mounted on gun	67
89/41.18	For limiting the field of fire	11
89/41.16	For relatively movable gun barrels	23
89/41.02	Motor operated	41
89/41.12	By hydraulic means	27
89/41.06	By light reception	118
89/41.07	By radar	41
89/41.08	By sound	11
89/41.05	By television monitoring	73
89/41.11	Compensates for trunnion tilt	10
89/41.04	Eliminates lag or overrun	7
89/41.14	For naval gun fire control	19
89/41.13	For scattering effect	10
89/41.09	Gyroscopically or pendulum controlled	26
89/41.03	Predetermining parameters for automatic firing	50
89/41.15	With unitary control for plural motors	10
89/41.19	Sights or line devices	73
89/41.22	For anti-aircraft	35
89/41.21	On aircraft	43
89/200	Straight-line light ray type	20
89/201	Accelerometer stabilized or factored	2
89/202	Gyroscopically stabilized	8
89/203	Self adjusting gun movement compensator	9
89/204	Compensates for moving target	8
89/205	And moving craft or gun platform	9
89/206	Compensates for trunnion tilt	4
89/37.07	Trunnion	40
89/37.15	With body protecting devices	0
89/42.01	With recoil check	25
89/42.03	Fire-out-of-battery type	14
89/43.01	Fluid	60
89/43.02	With function of elevation	7
89/42.02	On trail spade	2
89/44.01	Spring type	30
89/44.02	Elastic type	9
89/1.41	Multiple barrel guns	51
89/1.3	Muzzle loading	42
	Pneumatic
89/7	Explosive charge	152
89/29	Practice barrels	54
89/1.7	Recoilless gun	24
89/1.701	Having a reaction mass	39
89/1.702	Barrel parts separable for loading	4
89/1.704	Having breech closure	16
89/1.706	Cartridge-case closure	7
89/1.705	Closure has firing device	6
89/1.703	Having pressure-control means	20
89/1.8	Rocket launching	90
89/1.819	Having guide means	69
89/1.806	Having means restraining rocket from movement in launching direction	58
89/1.807	Including rocket-firing means	19
89/1.808	Rocket spin stabilized while restrained	8
89/1.805	Having means to transfer rocket to launcher	25
89/1.813	Having rocket-firing means	27
89/1.814	Rocket propellant ignited by electrical means	54
89/1.801	Having rocket-storage and transfer means	32
89/1.803	Having magazine-gate means to feed and support rocket for launching	5
89/1.802	Launcher movable relative to storage means	17
89/1.804	Storage means movable to facilitate launching	25
89/1.812	Having safety devices for preventing premature ignition or launching	49
89/1.816	Having tubular guide means	192
89/1.817	Including a forward closure	49
89/1.818	Including an auxiliary rocket-launching charge	41
89/1.811	Having umbilical-separating means	29
89/1.82	Method of making	4
89/1.815	Movable launcher	93
89/1.809	Underwater launching	61
89/1.81	Rocket launched from container	82
89/36.01	Shields	129
89/36.16	Anti-aircraft type	5
89/36.05	Body	121
89/36.11	For aircraft	41
89/36.04	For fixed structure	65
89/36.12	For ships	16
89/36.15	On elevatable platform	8
89/36.03	Rotating shield	9
89/36.02	Shape or composition	452
89/36.06	Small arms attached	9
89/36.07	Transportable	56
89/36.08	Self-propelled, e.g., tanks, etc.)	202
89/36.09	Wheeled	29
89/36.13	Turret type	71
89/36.14	With vision slit or gun port closures	51
89/36.17	With explosive device	80
89/1.2	Smoke or residue ejector	22
89/5	Submarine	15
89/31	Tompions and valves	8
89/1.35	Trench mortars	21
89/30	Vents and stoppers	8
89/1.11	Waging war	447
89/1.15	Well perforators	81
89/1.151	Method of making	5