B21H3/022 - CPC Classification Index

ClassID:

39054 ⎘

B21H3/022 - CPC Classification

Classification description:

Making helical bodies or bodies having parts of helical shape external screw-threads ; Making dies for thread rolling combined with rolling splines, ribs, grooves or the like, e.g. using compound dies

Recent Application in this class:

20180135681

2018-05-17

Crack-proof screw

20180056367

2018-03-01

Thread rolling assembly

20160096244

2016-04-07

Hybrid fastener and method of making the same

20160003282

2016-01-07

Method for Producing a Concrete Screw

20150013416

2015-01-15

Manufacturing method and manufacturing apparatus of screw-threaded bottle-can

20140133933

2014-05-15

Anchor bolt and production method

20130115025

2013-05-09

Production method for a semi-finished product and semi-finished product

20130111964

2013-05-09

Production method for a semi-finished product

20130040743

2013-02-14

Method of forming anchors

#10

20120155986

2012-06-21

Helical rolled ring bolt

#11

20110280683

2011-11-17

Screw or nut with a thread a pitch of which varies and tool to produce said screw or nut

#12

20110044785

2011-02-24

METHOD FOR MANUFACTURING SCREW WITH HELICAL CHIP DISCHARGE CHANNEL AND PRODUCT THEREOF

#13

20090252572

2009-10-08

SCREW, BOLT OR LOCKING RING BOLT

#14

20080260493

2008-10-23

Bolt and thread rolling die and the manufacture of the bolt

#15

20060236740

2006-10-26

Method of producing left-right screw

#16

20050163596

2005-07-28

Screw with a plurality of screwing angles and mold device for forming the same

#17

14249081

2017-09-12

Method for making a die for roll forming a dual threaded bolt