C21D9/0043 - CPC Classification Index

ClassID:

119066 ⎘

C21D9/0043 - CPC Classification

Classification description:

Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor Muffle furnaces; Retort furnaces

Recent Application in this class:

20190162474

2019-05-30

Batch furnace for annealing material and method for heat treatment of a furnace material

20190127836

2019-05-02

Heat treatment facility

20170226604

2017-08-10

Method for producing a retort for a nitriding furnace and retort

20170130287

2017-05-11

METHOD FOR HEAT TREATMENT, HEAT TREATMENT APPARATUS, AND HEAT TREATMENT SYSTEM

20170073786

2017-03-16

HEAT TREATMENT APPARATUS

20160362765

2016-12-15

Heat chamber furnace for heat treatment with gaseous atmosphere quenching

20160255680

2016-09-01

Heating apparatus and heating furnace

20140042678

2014-02-13

20 bar super quench vacuum furnace

20130209947

2013-08-15

Work load lifting system for a vertical vacuum furnace

#10

20130032977

2013-02-07

Mist cooling apparatus and heat treatment apparatus

#11

20110114621

2011-05-19

Retort Furnace for Heat Treating Metal Workpieces

#12

20100196836

2010-08-05

Sealing mechanism for a vacuum heat treating furnace

#13

20070204848

2007-09-06

Sealing device for a gas inlet to an oven or the like