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Class Information
Number: 89/155
Name: Ordnance > Automatic > Movable chamber type (e.g., revolver, etc.)
Description: Guns wherein the cartridge is fired in a movable firing chamber, e.g., a revolver cylinder actuated by a gas piston, etc.

Sub-classes under this class:

Class Number Class Name Patents
89/156 Operating as gas piston and/or recoil member 9
89/157 Recoiling barrel with revolving chambers 6

Patents under this class:

Patent Number Title Of Patent Date Issued
8459166 Obturation of drum cannons Jun. 11, 2013
7293385 Modular trigger group for firearms and firearm having a modular trigger group Nov. 13, 2007
6257116 Pistol Jul. 10, 2001
6234058 Semiautomatic pocket gun and ammunition May. 22, 2001
5974941 Semi-automatic revolver Nov. 2, 1999
5675924 Ejection device for firearm Oct. 14, 1997
5668343 Gatling type multi-barrel weapon with sliding chambers Sep. 16, 1997
5370036 Telescoped ammunition revolver gun Dec. 6, 1994
5202530 Light armor piercing automatic rifle Apr. 13, 1993
5111732 Automatic weapon with small barrel for rapid firing May. 12, 1992
4993312 Automatic hand weapon Feb. 19, 1991
4872391 Gun for firing telescoped ammunition, plus searing means Oct. 10, 1989
4856410 Firearm Aug. 15, 1989
4760663 Firearm Aug. 2, 1988
4748892 Energy transfer multi-barrel gun Jun. 7, 1988
4561340 Two-barrel revolver-type firearm Dec. 31, 1985
4535676 Cooling arrangement for the gun barrels of firearms Aug. 20, 1985
4348941 Shoulder arm with swivel breech member Sep. 14, 1982
4197784 Semi-automatic revolver Apr. 15, 1980
4159670 Handgun Jul. 3, 1979
4152857 Means for loading small firearms including a box magazine and cartridge clips May. 8, 1979
4151782 Handgun with indexing means May. 1, 1979
4102241 High-rate-of-fire rifle mechanism or dual cyclic rate mechanism Jul. 25, 1978
4050174 Revolver gun Sep. 27, 1977
4024793 Energy absorbing device and detent for constant recoil slide May. 24, 1977
4004363 Rotatable cartridge chamber for firearm type weapon Jan. 25, 1977
3997994 Shoulder arm with swivel breech member Dec. 21, 1976
3954042 Firearm construction, particularly a compact hand firearm May. 4, 1976

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