C21D9/12 - CPC Classification Index

ClassID:

119081 ⎘

C21D9/12 - CPC Classification

Classification description:

Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for tubular bodies or pipes barrels for ordnance

Recent Application in this class:

20210207233

2021-07-08

Method for producing a highly heat-resistant weapon barrel provided with a twist profile

20140318351

2014-10-30

Annealing system for cartridge casings

20130186262

2013-07-25

Case annealer

20110017051

2011-01-27

Compressed elastomer process for autofrettage and lining tubes

20100003162

2010-01-07

Method for the Production of Forged Steel for Weapons Subject to Heavy Stresses, Barrel Blanks and Thus-Equipped Weapon

20090084255

2009-04-02

Compressed elastomer process for autofrettage and lining tubes

20050066801

2005-03-31

Method for gun barrel manufacture using tailored autofrettage mandrels