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Class Information
Number: 42/76.1
Name: Firearms > Barrels > Method of making or modifying by metal working
Description: Subject matter includes (a) a step of fabricating or (b) a step of altering by reshaping using, e.g., a lathe, a boring device, machine, or other tools or devices used in the art.










Patents under this class:

Patent Number Title Of Patent Date Issued
8671609 Stress induced crystallographic phase transformation and texturing in tubular products made of cobalt and cobalt alloys Mar. 18, 2014
8635797 Rifling angle calculating method Jan. 28, 2014
8522471 Firearms and firearm components comprising bonded multi-metallic materials; methods of manufacture Sep. 3, 2013
8474361 Process to produce a silencer tube with minimal wall thickness Jul. 2, 2013
8418392 Compressed elastomer process for autofrettage and lining tubes Apr. 16, 2013
8365647 Manufacturing process of a unitary barrel, chamber and action for a firearm Feb. 5, 2013
8333029 Extreme duty machine gun barrel Dec. 18, 2012
8302341 Stress induced crystallographic phase transformation and texturing in tubular products made of cobalt and cobalt alloys Nov. 6, 2012
8291632 Projectile weapons Oct. 23, 2012
8136286 Firearms and firearm components comprising bonded multi-metallic materials Mar. 20, 2012
8056279 Compressed elastomer process for autofrettage and lining tubes Nov. 15, 2011
8025003 Fluted firearm barrel Sep. 27, 2011
7963202 Superalloy mortar tube Jun. 21, 2011
7934332 Composite firearm barrel May. 3, 2011
7866079 Modular barrel assembly Jan. 11, 2011
7707761 Process for manufacturing double barrel shotgun barrels, and the resulting double barrels May. 4, 2010
7383656 Process for manufacturing double barrel shotgun barrels, and the resulting double barrels Jun. 10, 2008
7334364 Process for imprinting a composite ventilated rib Feb. 26, 2008
7082708 Method for removing coating damages and/or erosion damages Aug. 1, 2006
7059078 Process for imprinting a composite ventilated rib Jun. 13, 2006
7036260 Method and system to prevent firing live rounds of ammunition during miles exercises May. 2, 2006
6931776 Apparatus for the section-wise autofrettage of gun barrels Aug. 23, 2005
6817132 Barrel chambering method and apparatus Nov. 16, 2004
6810615 Method for gun barrel manufacture using tailored autofrettage mandrels Nov. 2, 2004
6408557 Apparatus for producing rifling grooves in a weapon barrel Jun. 25, 2002
6233799 Cylinder sizer and method thereof May. 22, 2001
6230429 Composite tube for gun barrel May. 15, 2001
5600912 Composite tube for a gun barrel Feb. 11, 1997
5202524 Gun and method of mounting a sight thereon Apr. 13, 1993
4669212 Gun barrel for use at high temperature Jun. 2, 1987
4359810 Method of forming cartridge chambers in firearm barrels Nov. 23, 1982
4058925 Concepts of remington super trap choke Nov. 22, 1977











 
 
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