C21D9/64 - CPC Classification Index

ClassID:

119120 ⎘

C21D9/64 - CPC Classification

Classification description:

Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor for wires; for strips ; for rods of unlimited length; Furnaces for treating strips or wire Patenting furnaces

Recent Application in this class:

20210355561

2021-11-18

HEAT EXCHANGE METHOD, HEAT EXCHANGE MEDIUM, HEAT EXCHANGE DEVICE, PATENTING METHOD, AND CARBON-STEEL WIRE

20170009317

2017-01-12

Filament

20150361535

2015-12-17

Process for manufacturing a profiled steel wire

20130186521

2013-07-25

Profiled steel wire with high mechanical characteristics resistant to hydrogen embrittlement

20090277545

2009-11-12

High-strength wire rod excellent in drawing characteristics and method of manufacturing the same

20090007997

2009-01-08

Methods and Systems for Preventing Iron Oxide Formulation and Decarburization During Steel Tempering

20070107815

2007-05-17

Method and device for patenting steel wires