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Class Information
Number: 42
Name: Firearms >
Description: This class includes all the portable firearms, i.e., those which are supported by hand when operated, such as shoulder guns, pistols, toy firearms and cane guns, except the automatic or explosion-operated firearms. This class also has such firearms combined with cleaners, intrenching devices, bayonets, and other cutters (including specifically pistol-swords). The following devices are likewise found here either, per se, or in combination with the firearm; ram rods, gun-rests and some body supported arm rests.










Class Number Class Name No. of Patents
42/76.01

Barrels

139
42/77

Auxiliary

135
42/79

Choke devices

59
42/76.02

Materials or coatings

83
42/76.1

Method of making or modifying by metal working

28
42/78

Rifling or lining

69
42/86

Bayonets

16
42/1.16

Billy club type

14
42/1.11

Body borne remote operated

10
42/2

Breech loading

20
42/8

Breech hinged barrel

13
42/9

Faucet breechblock

8
42/10

Forward-sliding barrel

16
42/11

Magazine

14
42/7

Grip magazine pistols

135
42/6

Magazine guns

42
42/49.01

Magazines

89
42/49.02

Adapters or capacity reducers

48
42/50

Box

217
42/49.1

Method of making

3
42/39.5

Movable chamber

28
42/12

Side swinging barrel

9
42/13

Parallel pivot

6
42/14

Sliding breechblock

26
42/15

Movable chamber

25
42/16

Rearward

166
42/25

Extractors

119
42/17

Magazine

58
42/18

Box

56
42/19

Rotary

18
42/16.1

Method of making

2
42/20

Pivoted hammer

10
42/21

Magazine

10
42/22

Box

16
42/23

Vertical mortise

20
42/24

Magazine

2
42/5

Spring-motor operated

0
42/26

Swinging breechblock

6
42/28

Downward and rearward

6
42/29

Magazine

5
42/30

Laterally forward

1
42/31

Laterally rearward

1
42/27

Movable chamber

4
42/32

Parallel pivot

4
42/33

Magazine

4
42/34

Rearward and downward

10
42/35

Magazine

5
42/36

Upward and forward

2
42/37

Magazine

2
42/38

Upward and rearward

9
42/39

Magazine

3
42/40

Upward-tilting breech

27
42/44

Barrel locks

37
42/45

Hammer cocking

11
42/47

Ejectors

22
42/48

Hammer

5
42/46

Extractors

30
42/41

Firing mechanism

24
42/43

Cocking devices

16
42/42.01

With single actuator

36
42/42.02

Plural triggers

8
42/42.03

Single trigger and hammer

17
42/52

Cane guns

1
42/1.12

Cattle slaughter type

11
42/1.09

Disguised as body article

27
42/84

Electric appliances

207
42/69.01

Firing mechanism

235
42/69.02

Rearward sliding breech bolt

136
42/69.03

With pivoted hammer

131
42/1.15

Flare type gun

23
42/1.08

For discharging a stunning agent

112
42/85

Gun trimmings

118
42/90

Implements

383
42/104

Finger recoil pad

4
42/96

Firearm protectors

111
42/95

For barrel cleaning

130
42/105

For launching grenades

109
42/93

Intrenching

4
42/99

Magnetic holding devices

17
42/94

Rests

420
42/98

Shell catchers

48
42/111

Sight devices

153
42/135

Correctable

24
42/139

Laterally, including target leading type

10
42/136

Vertically adjustable (e.g., slide, ramp, etc.)

46
42/137

And laterally

69
42/138

By pivoting about transverse axis

28
42/140

Dual flip-, superimposed-, or dial-type

29
42/114

Focused beam (e.g., laser on target, etc.)

144
42/117

Activated by a switch

82
42/115

Having beam adjusting structure or mounted for correction

76
42/116

Through the bore type (i.e., insertable into firing chamber)

43
42/133

Having variable size aperture, slot, notch, or cone-shaped

27
42/143

Hood, guard, shade, or cover

23
42/132

Illuminated, including fiber optics

133
42/141

Multisight, for moving targets (e.g., shotgun type, etc.)

27
42/142

Nonadjustable rangefinder, type

36
42/118

Periscope type or using a mirror

26
42/148

Stowed, relocated to nonuse position, or quickly detachable

65
42/146

Target illuminated (e.g., via flashlight, etc.)

116
42/113

Target spot or dot superimposed on sight

78
42/119

Telescopic type

106
42/122

Having a reticle (including adjustable)

150
42/123

And an illuminating or incandescent device

63
42/129

Lens cover, scope hood, or shade

43
42/124

Mount or mounting

201
42/125

Allowing adjustment

95
42/126

Vertically and laterally

65
42/127

Quickly detachable (i.e., knockdown)

125
42/128

To nonuse position, including to reload

20
42/120

With a collimating or sighting-in device

33
42/121

Insertable into muzzle

23
42/134

Through the bore type (e.g., sighting in, or straightness testing device, etc.)

18
42/144

Using contrasting material or color (e.g., bead, etc.)

41
42/145

Luminescent, phosphorescent, luminous material

45
42/112

Vent, vented, or ventilated rib type

41
42/130

With a reticle or graticule (e.g., crosshairs, etc.)

65
42/131

Including an incandescent or illuminating device

57
42/147

Yieldable

8
42/97

Weights and balances

34
42/1.01

Indicators

104
42/1.05

Chamber status

41
42/1.04

Hammer position

5
42/1.02

Magazine shot

44
42/1.03

Single shot, e.g., digital type

19
42/87

Magazine chargers

95
42/88

Packs

21
42/89

Revolver

49
42/106

Miscellaneous

163
42/51

Muzzle loaders

144
42/107

Muzzle making, attaching or repair

5
42/83

Nipples and guards

38
42/53

Pistol swords

2
42/DIG.1

Release trigger

6
42/59

Revolvers

76
42/61

Cylinder loaded from muzzle end

9
42/65

Firing mechanism

77
42/67

Cylinder stops

23
42/66

Safety devices

99
42/63

Hinged barrel

5
42/64

Barrel catches

6
42/60

Magazine-fed cylinder

10
42/68

Shell extractors

19
42/62

Swinging cylinder

19
42/70.01

Safety mechanism

258
42/70.11

Firearm lock

474
42/70.08

Hammer or firing pin

257
42/70.02

Magazine operated

56
42/70.07

On trigger guard

154
42/70.09

Responsive to particular firing angle

8
42/70.05

Sear lock

55
42/70.04

Sear trigger lock

39
42/70.03

Shoulder operated

3
42/70.06

Trigger lock

164
42/75.01

Stock or barrel connectors

108
42/75.02

Barrel to receiver

178
42/75.04

Hinged or pivoted barrel

38
42/75.1

Method of making

18
42/75.03

Receiver to stock

129
42/71.01

Stocks

249
42/73

Adjustable

130
42/72

Auxiliary

203
42/74

Cushioned

130
42/71.02

For pistols

144
42/108

Tool for assembly or disassembly

26
42/54

Toy

44
42/55

Cannon

12
42/58

Revolvers

12
42/57

Ribbon fed

9
42/1.13

Trip, trap or burglary prevention

9
42/1.14

Underwater type

40
42/1.07

With adjustable head space

13
42/1.071

By reaming

1
42/1.06

With recoil reducer

97
 
 
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