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Class Information
Number: 42/77
Name: Firearms > Barrels > Auxiliary
Description: Barrels some of which are adapted to be placed within the usual barrel to make a rifle in place of a shotgun or for some other reason to reduce the usual bore; some barrels adapted to be placed by and removed from the side of the usual barrel to make a double-barreled gun or one with a shot and also a rifle barrel.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5463958 |
Mortar adaptor |
Nov. 7, 1995 |
| 5448848 |
Shotgun having light weight interchangeable barrel tubes |
Sep. 12, 1995 |
| 5415074 |
Sub-caliber inbore weapon for tank cannons |
May. 16, 1995 |
| 5363769 |
Practice round having a projectile and an adapter with the same caliber as the projector and an appropriate propelling charge |
Nov. 15, 1994 |
| 5351428 |
Collapsible lightweight rifle |
Oct. 4, 1994 |
| 5325617 |
System for changing the barrel of a gun or weapon |
Jul. 5, 1994 |
| 5228887 |
Firearm especially hunting rifle with exchangeable barrel, and modular system for such a firearm |
Jul. 20, 1993 |
| 5157210 |
Shotgun cartridge adapter |
Oct. 20, 1992 |
| 5148620 |
Shotshell size adapter |
Sep. 22, 1992 |
| 5133142 |
Multi-caliber firearm |
Jul. 28, 1992 |
| 5024016 |
Self-loading pistols |
Jun. 18, 1991 |
| H926 |
Rimfire blank adaptor kit for M16 rifles |
Jun. 4, 1991 |
| 5018293 |
Shotgun shell ejector/extractor means for skeet gun carrier barrel having smaller gauge tube therein |
May. 28, 1991 |
| 5010677 |
Plug for shotgun or rifle barrel using black powder |
Apr. 30, 1991 |
| 4989359 |
Shotgun having interchangeable barrels |
Feb. 5, 1991 |
| 4955157 |
Small caliber ammo conversion kit |
Sep. 11, 1990 |
| 4914845 |
Breech load pistol and conversion |
Apr. 10, 1990 |
| 4912868 |
Muzzle loading conversion unit for shotguns |
Apr. 3, 1990 |
| 4907362 |
Sub-caliber firearm |
Mar. 13, 1990 |
| 4833810 |
Firearm |
May. 30, 1989 |
| 4735009 |
Small arms caliber reducing adaptor kit |
Apr. 5, 1988 |
| 4733489 |
Apparatus for reconfiguring automatic rifle to include grenade launching function |
Mar. 29, 1988 |
| 4729186 |
Firearm with barrel holder for interchangeable barrels |
Mar. 8, 1988 |
| 4707942 |
Interchangeable barrel for Colt self-loading pistols |
Nov. 24, 1987 |
| 4702027 |
Thermal liner for gun firing chamber |
Oct. 27, 1987 |
| 4685235 |
Barrel alignment device in automatic weapon |
Aug. 11, 1987 |
| 4674217 |
Firearm with reversible barrel |
Jun. 23, 1987 |
| H278 |
Apparatus for adapting a rifle to fire a different projectile |
Jun. 2, 1987 |
| 4660312 |
Rifled gun barrel having smooth bore section |
Apr. 28, 1987 |
| 4651456 |
Revolver with reduced backlash moment |
Mar. 24, 1987 |
| 4648192 |
Firearm for firing ammunition of different caliber |
Mar. 10, 1987 |
| 4644930 |
Gun for firing a variety of projectiles |
Feb. 24, 1987 |
| 4642928 |
Insert for reducing the caliber of a weapon |
Feb. 17, 1987 |
| 4638712 |
Bullet perforating apparatus, gun assembly and barrel |
Jan. 27, 1987 |
| 4608909 |
Interchangeable barrel for small arms |
Sep. 2, 1986 |
| 4602450 |
Forend structure for pistol conversion assembly |
Jul. 29, 1986 |
| 4580484 |
Firearm and firearm conversion unit |
Apr. 8, 1986 |
| 4559737 |
Snare device |
Dec. 24, 1985 |
| 4542606 |
Pistol structure |
Sep. 24, 1985 |
| 4519156 |
Firearm with interchangeable barrels |
May. 28, 1985 |
| 4515064 |
Weapon rim-fire conversion unit II |
May. 7, 1985 |
| 4506604 |
Cartridge shaped barrel insert |
Mar. 26, 1985 |
| 4494332 |
Firearm capable of firing different-sized cartridges |
Jan. 22, 1985 |
| 4459774 |
Hand weapon caliber reducers |
Jul. 17, 1984 |
| 4455777 |
Caliber-reducing kit for a revolver |
Jun. 26, 1984 |
| 4442777 |
Adaptor cartridge |
Apr. 17, 1984 |
| 4437249 |
Conversion of modern shotguns into muzzleloading shotguns |
Mar. 20, 1984 |
| 4418488 |
Pistol and removable cartridge shaped barrel insert |
Dec. 6, 1983 |
| 4404765 |
Gun barrel insert |
Sep. 20, 1983 |
| 4368589 |
Hand gun and kit therefor |
Jan. 18, 1983 |
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