C21D9/0031 - CPC Classification Index

ClassID:

119064 ⎘

C21D9/0031 - CPC Classification

Classification description:

Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor Rotary furnaces with horizontal or slightly inclined axis

Recent Application in this class:

20210332452

2021-10-28

SYSTEMS AND METHODS FOR PROCESSING METALLIC ARTICLES WITH A RETORT FURNACE

20210262732

2021-08-26

Method for moulding a sheet into a component of complex shape having areas with different mechanical properties, particularly a motor-vehicle component

20210260643

2021-08-26

Method for moulding a sheet into a component of complex shape having areas with different mechanical properties, particularly a motor-vehicle component

20190239291

2019-08-01

INDUCTION HEATING APPARATUS AND INDUCTION HEATING METHOD

20140327195

2014-11-06

Rotating vacuum heat treatment equipment

20130112141

2013-05-09

Treatment device

20110114621

2011-05-19

Retort Furnace for Heat Treating Metal Workpieces