B21K21/02 - CPC Classification Index

ClassID:

39327 ⎘

B21K21/02 - CPC Classification

Classification description:

Making hollow articles not covered by a single preceding sub-group Producing blanks in the shape of discs or cups as semifinished articles for making hollow articles, e.g. to be deep-drawn or extruded

Recent Application in this class:

20230390823

2023-12-07

PRESS COINING SYSTEMS AND METHODS

20210339306

2021-11-04

Precision forging method, precision forging device, and precision forging product

20160074929

2016-03-17

Forging device and forging method

20150068264

2015-03-12

Manufacturing method for bearing outer ring

20140331733

2014-11-13

Torsional extreme-plastic processing method of conic metal pipe

20120117780

2012-05-17

Refractory metal pots

20120090375

2012-04-19

ZONING CLOSED-DIE EXTRUDING DEVICE AND METHOD

20100101091

2010-04-29

Manufacturing method for bearing outer ring

20090301165

2009-12-10

Device for forging bush-shaped objects and a forged part produced therewith

#10

20090127271

2009-05-21

Method for Manufacturing Liner Component

#11

20080257009

2008-10-23

Method of providing a solenoid housing

#12

20070191171

2007-08-16

Differential with die formed housing

#13

20070169529

2007-07-26

Refractory metal pots

#14

20070006628

2007-01-11

Molding method by forging and molding method for case

#15

20060112751

2006-06-01

Method for manufacture of a metal shell, and a cup designed to serve as a blank

#16

20060005595

2006-01-12

Clutch housing and method for manufacturing the same