ClassID:

38350

B21C37/28 - CPC Classification

Classification description:

Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes; Making tubes of special shape; Making tube fittings Making tube fittings for connecting pipes, e.g. U-pieces

Sub-classes:
Recent Application in this class:
#1
20250296176
2025-09-25

WORKPIECE PROCESSING METHOD, MACHINE TOOL, AND NON-TRANSITORY COMPUTER-READABLE RECORDING MEDIUM

#2
20230173702
2023-06-08

APPARATUS AND METHOD FOR PRODUCTION OF DUCT MEMBERS

#3
20200158372
2020-05-21

Apparatus and method for production of duct members

#4
20190017634
2019-01-17

Tubular coupling

#5
20180080587
2018-03-22

Fluid couplings, systems, and methods

#6
20180072513
2018-03-15

Pipe for conveying abrasive materials such as concrete, apparatus and method for producing said pipe

#7
20160114368
2016-04-28

Formation and rotational apparatus and method for cylindrical workpieces

#8
20150107111
2015-04-23

Formation and rotational apparatus and method for cylindrical workpieces

#9
20150096175
2015-04-09

Static dissipative fluid conveying coupler and methods of assembling the same

#10
20140076020
2014-03-20

Press for upsetting an end of a metallic material pipe

#11
20130292939
2013-11-07

Fitting for thick-walled pipes and method for its production

#12
20120326434
2012-12-27

Static dissipative fluid conveying coupler

#13
20120161438
2012-06-28

Press fitting and use thereof

#14
20120001414
2012-01-05

Fitting for thick-walled pipes and method for its production

#15
20100310347
2010-12-09

Formation and rotational apparatus and method for cylindrical workpieces

#16
20070029080
2007-02-08

Deformable member

#17
20060283010
2006-12-21

Formation and rotational apparatus for cylindrical workpieces

#18
20060279082
2006-12-14

Tube having multi-channel tube and branch tubes, connection structure thereof and connection method therefore

#19
20050263296
2005-12-01

Deformable member

#20
20050072203
2005-04-07

Pre-beading method and apparatus

#21
20050028337
2005-02-10

Apparatus and method for automated production of adjustable duct member