Firearms Patents (Class 42)
- Spring-motor operated (Class 42/5)
- Breech hinged barrel (Class 42/8)
- Faucet breechblock (Class 42/9)
- Forward-sliding barrel (Class 42/10)
- Side swinging barrel (Class 42/12)
- Sliding breechblock (Class 42/14)
- Swinging breechblock (Class 42/26)
- Movable chamber (Class 42/39.5)
- Upward-tilting breech (Class 42/40)
- Grip magazine pistols (Class 42/7)
- Magazine guns (Class 42/6)
- Magazines (Class 42/49.01)
- Magazine operated (Class 42/70.02)
- Shoulder operated (Class 42/70.03)
- Sear trigger lock (Class 42/70.04)
- Sear lock (Class 42/70.05)
- Trigger lock (Class 42/70.06)
- On trigger guard (Class 42/70.07)
- Hammer or firing pin (Class 42/70.08)
- Responsive to particular firing angle (Class 42/70.09)
- Firearm lock (Class 42/70.11)
- Intrenching (Class 42/93)
- Rests (Class 42/94)
- For barrel cleaning (Class 42/95)
- Firearm protectors (Class 42/96)
- Weights and balances (Class 42/97)
- Shell catchers (Class 42/98)
- Magnetic holding devices (Class 42/99)
- Sight devices (Class 42/111)
- Finger recoil pad (Class 42/104)
- For launching grenades (Class 42/105)
