C21D9/663 - CPC Classification Index

ClassID:

119122 ⎘

C21D9/663 - 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 Bell-type furnaces

Sub-classes:

C21D9/665 » inverted or side-facing 1
C21D9/667 » Multi-station furnaces 6
C21D9/673 » Details, accessories, or equipment peculiar to bell-type furnaces 14
C21D9/675 » Arrangements of charging or discharging devices 4
C21D9/677 » Arrangements of heating devices 7

Recent Application in this class:

20200291500

2020-09-17

Portable carrier device for a furnace charge and handling system for the carrier device

20200071785

2020-03-05

Hot-rolled flat steel product and method for the production thereof

20190003771

2019-01-03

Heating furnace for heating annular component

20160305191

2016-10-20

Insulation enclosure with compliant independent members

20130040256

2013-02-14

METHOD FOR PRE-HEATING ANNEALING MATERIAL IN A HOOD-TYPE ANNEALING SYSTEM

20120279868

2012-11-08

MANUFACTURING GALVANNEALED SHEETS BY HEAT-TREATING ELECTROLYTICALLY FINISHED SHEETS

20120028069

2012-02-02

GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND PRODUCING METHOD THEREFOR

20110049773

2011-03-03

HEAT RETENTION TUNNEL FOR PROCESSING COILS OF HOT ROLLED BAR AND ROD PRODUCTS