C21D9/0037 - CPC Classification Index

ClassID:

119065 ⎘

C21D9/0037 - CPC Classification

Classification description:

Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor Rotary furnaces with vertical axis; Furnaces with rotating floor

Recent Application in this class:

20230287533

2023-09-14

WORKPIECE HOLDING DEVICE

20230287532

2023-09-14

WORKPIECE HOLDING DEVICE

20160313061

2016-10-27

Rotary heat treatment furnace

20120264074

2012-10-18

ROTARY HEARTH FURNACE

20120234438

2012-09-20

Process for Production of Cold-Rolled Steel Sheet Having Excellent Press Moldability, and Cold-Rolled Steel Sheet

20120211191

2012-08-23

High pressure heat treatment system

20110068518

2011-03-24

Heating furnace for press hardening process

20090280449

2009-11-12

Apparatus and method for heat treatment

20090206527

2009-08-20

HIGH PRESSURE HEAT TREATMENT SYSTEM

#10

20080003534

2008-01-03

Heat treatment furnace and heat treatment facility comprising it

#11

20060103059

2006-05-18

High pressure heat treatment system

#12

20050161869

2005-07-28

Installation for the heat-treatment of parts