Patents-Review.com
ClassID:

38250 ⎘

B21C23/205 - CPC Classification

Classification description:

Extruding metal; Impact extrusion; Making uncoated products by backward extrusion Making products of generally elongated shape

Recent Application in this class:
#1
20250375805
2025-12-11

LONG CARTRIDGE CASE

 #2
20240085069
2024-03-14

EVAPORATOR

 #3
20240060159
2024-02-22

MG-AL MAGNESIUM ALLOY, PREPARATION METHOD FOR TUBE MADE OF MG-AL MAGNESIUM ALLOY, APPLICATION OF MG-AL MAGNESIUM ALLOY

 #4
20210170464
2021-06-10

Can packaging, can packaging blank and apparatus and method for production thereof

 #5
20210069765
2021-03-11

Method of manufacturing two tubes simultaneously and machine for use therein

 #6
20210069764
2021-03-11

FRICTION-ASSISTED TUBE FABRICATION METHOD

 #7
20200156144
2020-05-21

Method for the production of hollow chamber valves

 #8
20200056870
2020-02-20

Long cartridge case

 #9
20180369889
2018-12-27

Special-purpose die for shaping aluminum-magnesium alloy by rotating extrusion

 #10
20180304330
2018-10-25

METHOD OF PRODUCTION OF HIGH-PRESSURE SEAMLESS CYLINDER FROM CORROSION-RESISTANT STEEL

 #11
20180259309
2018-09-13

Long cartridge case

 #12
20180056351
2018-03-01

Rotary extrusion producing method for producing inner ring rib with large aspect ratio formed of hollow billet

 #13
20180001364
2018-01-04

Method of manufacturing a tube and a machine for use therein

 #14
20170368585
2017-12-28

Method of manufacturing a tube and a machine for use therein

 #15
20170361367
2017-12-21

Method of manufacturing a tube and a machine for use therein

 #16
20170297069
2017-10-19

Direct or indirect metal pipe extrusion process, mandrel for extruding metal pipes, metal pipe extruder and extruded metal pipe

 #17
20140356646
2014-12-04

Method for producing a semifinished product for electrical contacts and contact piece

 #18
20140338415
2014-11-20

Method for operation of an indirect extrusion press and an indirect extrusion press

 #19
20120216589
2012-08-30

PRETENSIONER AND PRETENSIONER MANUFACTURING METHOD

 #20
20100299925
2010-12-02

METHOD FOR FORMING A GEAR

 #21
20100102053
2010-04-29

Combustion Chamber and Method for Production Thereof

 #22
20100051734
2010-03-04

Pretensioner

 #23
20100051733
2010-03-04

Pretensioner and pretensioner manufacturing method

 #24
20090208303
2009-08-20

Method for forging a spindle housing

 #25
20090064652
2009-03-12

METHOD OF MAKING BUSHING WITH BLIND GROOVES USED AS OIL RESERVOIR FOR CHAIN

 #26
20080309057
2008-12-18

Combustion Chamber and Method for Production Thereof

 #27
20080209972
2008-09-04

Radioactive substance container, manufacturing apparatus thereof and manufacturing method thereof

 #28
20080127704
2008-06-05

HOLLOW STEPPED SHAFT AND METHOD OF FORMING THE SAME

 #29
20070193030
2007-08-23

NET FORMED GEAR MEMBER AND METHOD OF MANUFACTURE

 #30
20070089474
2007-04-26

Radioactive substance container, manufacturing apparatus thereof and manufacturing method thereof

 #31
20070068215
2007-03-29

Hollow stepped shaft and method of forming the same

 #32
20060248936
2006-11-09

Metal molding method and machine, and metal molded body

 #33
20060016237
2006-01-26

Method for forging/molding a coarse blank of an oil cylinder

 #34
20050257374
2005-11-24

Cylindrical bearing member and method and apparatus for manufacturing same

 #35
20050087704
2005-04-28

Radioactive substance container, manufacturing apparatus thereof and manufacturing method thereof

 #36
20050016246
2005-01-27

Hollow stepped shaft and method of forming the same