| Patents for F41A 21 - Barrels; Gun tubes; Muzzle attachments; Barrel mounting means (3,096) |
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| 02/13/1991 | CN1011618B Improvements to firearms intented to fire caseless projectile and ammunition of this kind adapted for such weapons |
| 02/05/1991 | US4989359 Shotgun having interchangeable barrels |
| 01/09/1991 | EP0406487A1 Pistol especially suited for firing rifle ammunition |
| 01/08/1991 | US4982648 Gun barrel cooling arrangement |
| 12/19/1990 | EP0402713A2 Gun barrel made of fibre-reinforced plastic |
| 12/18/1990 | US4977815 Self cleaning automatic machine pistol and silencer for the same |
| 12/13/1990 | WO1990010841A3 Gun, in particular hunting gun, with interchangeable barrel and modular system for such a gun |
| 12/11/1990 | US4976184 Automatic pistol barrel and recoil compensator |
| 12/04/1990 | US4974489 Suppressor for firearms |
| 11/22/1990 | DE3915410A1 Adjustment device for muzzle end of gun barrel - consists of grub screws fitted in tube surrounding barrel |
| 11/13/1990 | US4969283 Firearm equipped with live round inhibiting means and method of making same |
| 11/08/1990 | DE3914600A1 Increasing recoil of gun - involves housing which deflects propellant gases |
| 11/06/1990 | US4967642 Machine gun |
| 11/06/1990 | CA1275845C Automatic choke shotgun |
| 10/23/1990 | US4964232 Single barrel break-action trap shotgun |
| 10/18/1990 | DE3912253A1 Double barrelled gun - has second barrel mounted in guide to enable it to expand freely in longitudinal direction |
| 10/18/1990 | DE3911023A1 Gun |
| 10/04/1990 | WO1990011483A1 Ball mounting |
| 10/04/1990 | DE4007815A1 Inserted firearm barrel component - is adjustable by components accessible from free end in bush at muzzle |
| 10/02/1990 | US4959917 Choke tube wrench for any gauge shotgun |
| 09/27/1990 | DE3908772A1 Kugellafette Ball mounting |
| 09/20/1990 | WO1990010841A2 Gun, in particular hunting gun, with interchangeable barrel and modular system for such a gun |
| 09/13/1990 | DE3907087A1 Hochdruckbehaelter Hochdruckbehaelter |
| 08/28/1990 | US4951409 Shotgun choke wrench and case |
| 08/14/1990 | US4947730 Firing mechanism for polymer weapon apparatus |
| 08/14/1990 | US4947729 For firing a projectile |
| 08/07/1990 | US4945812 Muzzle brake and method of making the same |
| 07/31/1990 | US4944213 Compensator for hand-held firearms |
| 07/24/1990 | US4942801 Firearm gun rise and muzzle jump reducer |
| 07/10/1990 | US4939977 Gun silencer and muzzle protector |
| 07/04/1990 | EP0375922A2 Launching apparatus for smoke-generating charges, explosive charges and the like |
| 07/03/1990 | CA1271070A1 Adjustable firearm stabilizer |
| 06/05/1990 | US4930397 Device for compensating the recoil energy of small arms |
| 06/05/1990 | US4930396 Gun muzzle brake |
| 05/29/1990 | US4928573 Silencer for saboted projectiles |
| 05/22/1990 | US4926739 Polymer gun operating handle |
| 05/16/1990 | EP0268767B1 Cannon of a tank |
| 05/15/1990 | US4924614 Gun barrel construction |
| 05/02/1990 | EP0366247A2 Impingement pressure regulator |
| 05/01/1990 | US4920854 Fluidic noise suppressor and stabilizer |
| 05/01/1990 | US4920679 Firearm with detachable barrel |
| 04/26/1990 | DE3835538A1 Gun |
| 04/24/1990 | US4919035 Muzzle brake and tool for installation |
| 04/17/1990 | US4916844 Hand-held firearm |
| 04/10/1990 | US4915011 Breech locking system for self loading firearms |
| 04/03/1990 | US4913031 Vibration damping device for improving the hit accuracy of a firing weapon |
| 03/28/1990 | EP0360786A2 Portable firearm, especially a rifle |
| 03/27/1990 | US4911060 Reduced weight gun tube |
| 03/22/1990 | DE3831766A1 Muzzle brake |
| 03/13/1990 | US4907489 Blank fire configuration for automatic pistol |
| 03/13/1990 | US4907488 Device for silencing firearms and cannon |
| 03/13/1990 | US4907362 Sub-caliber firearm |
| 02/20/1990 | US4901411 Apparatus for partial disassembly of firearm |
| 02/14/1990 | EP0354832A1 Projectile launcher with induction transmitted command |
| 02/08/1990 | DE3834304C1 Device for adjusting at least one front barrel end of a weapon having at least three barrels |
| 01/30/1990 | US4896581 Accurizer |
| 01/16/1990 | US4893544 Flash suppressor |
| 01/16/1990 | US4893426 Lugged coupling apparatus |
| 01/03/1990 | EP0348675A1 Apparatus for enhancing the dispersion pattern of a firearm |
| 12/27/1989 | EP0348273A1 Pneumatic brake booster assembly |
| 12/20/1989 | EP0346541A1 Means for effecting random dispersion of bullets |
| 11/30/1989 | WO1989011628A1 A heat protective covering for a pipe and a rod-shaped article, especially for gun barrels |
| 11/14/1989 | US4879942 Muzzle brake with improved stabilization and blast control |
| 11/08/1989 | EP0340829A2 Recoil strengthening device, in particular for rifles |
| 11/07/1989 | US4878306 Shotgun choke insertion and removal tool |
| 11/02/1989 | EP0339692A2 Method of forming a wear resistant gun barrel |
| 10/10/1989 | US4872390 Insert barrel with adjusting device |
| 10/04/1989 | EP0335433A1 Special barrel for direct-percussion grenade-launcher |
| 09/26/1989 | US4869151 Noise and recoil suppressor apparatus for high powered rifles |
| 09/26/1989 | CA1260747A1 Gun barrel construction |
| 09/19/1989 | CA1259511A1 Flash suppressor |
| 09/12/1989 | US4864761 Barrel vibration dampening device for rifles |
| 09/05/1989 | US4862544 Knife blade spanner wrench |
| 08/01/1989 | US4852460 Muzzle brake system |
| 08/01/1989 | CA1257998A1 Obturation in a firearm_ |
| 07/26/1989 | CN1034263A Breech locking system for self loading firearms |
| 07/11/1989 | US4846911 Preloaded composite electromagnetic barrel and process for fabricating same |
| 07/06/1989 | DE3742398A1 Barrel liner for shooting weapons |
| 07/04/1989 | US4843946 Lightweight firearm |
| 06/29/1989 | DE3742863A1 Blank-cartridge apparatus and blank-cartridge barrel |
| 06/27/1989 | US4841836 Thermal shroud for a gun tube |
| 06/22/1989 | DE3805384A1 Barrel liner for large-calibre shooting weapons |
| 06/13/1989 | US4838143 Polymer weapon apparatus with counter-torque device |
| 06/13/1989 | US4837962 Shotgun choke container/wrench |
| 06/08/1989 | DE3740371A1 Shooting weapon barrel |
| 05/30/1989 | US4833808 Anti-recoil device |
| 05/16/1989 | US4829877 Blank firing firearm recoil mechanism |
| 05/10/1989 | EP0314952A1 Security basket for use by firing blank ammunition from a weapon |
| 05/10/1989 | EP0314776A1 Flash suppressor for firearms |
| 05/09/1989 | US4827650 Firearms intended to fire a caseless projectile, and ammunition of this kind adapted for such weapons |
| 05/05/1989 | WO1989003969A1 Polymer gun |
| 05/05/1989 | WO1989003958A1 Silencer for firearm |
| 05/03/1989 | DE3735358A1 Schalldaempfer fuer feuerwaffen Silencer for firearms |
| 05/03/1989 | DE3304140A1 Firing chamber for caseless ammunition |
| 04/18/1989 | US4822759 Heating metal, mixing with filler and oxidizer, oxidation, drawing |
| 04/13/1989 | DE3733216A1 Weapon barrel for firing blank cartridges |
| 04/05/1989 | EP0309707A2 Insert barrel carrying a device for changing the position of the barrel |
| 03/30/1989 | DE3724502A1 Hunting gun having a plurality of barrels |
| 03/29/1989 | EP0188445B1 Torque assist device for a multi-barrel weapon |
| 03/21/1989 | US4813333 Dually-adjustable firearm muzzle attachment device |