ClassID:

38304

B21C37/0807 - 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 with welded or soldered seams Tube treating or manipulating combined with, or specially adapted for use in connection with tube making machines, e.g. drawing-off devices, cutting-off

Sub-classes:
Recent Application in this class:
#1
20230141285
2023-05-11

Electric resistance welded steel pipe, method for manufacturing the same, and automotive structural member

#2
20230113975
2023-04-13

Method for joining edges and/or surfaces of a profile, joining roller arrangement and profiling installation

#3
20210170512
2021-06-10

Weld bead cutting device and weld bead cutting method

#4
20200278160
2020-09-03

Heat exchangers, heat exchanger tubes, and additive manufacturing cold spray processes for producing the same

#5
20200072558
2020-03-05

Flat tube for a heat exchanger and a heat exchanger that is more resistant to debris

#6
20190234697
2019-08-01

Heat exchangers, heat exchanger tubes, and additive manufacturing cold spray processes for producing the same

#7
20170312854
2017-11-02

Method for producing a tube from metal

#8
20150158099
2015-06-11

Cutting-off machine

#9
20140377484
2014-12-25

ROLL FORM APPARATUS, METHOD TO MANUFACTURE CRUSH TUBES

#10
20120292157
2012-11-22

Conveying apparatus for objects and welding apparatus with such a conveying apparatus

#11
20120031602
2012-02-09

Method of forming heat exchanger tubes

#12
20110250365
2011-10-13

Continuously Manufactured Colored Metallic Products and Method of Manufacture of Such Products

#13
20110174046
2011-07-21

Method for producing a large steel tube

#14
20080313906
2008-12-25

METHOD OF FORMING HEAT EXCHANGER TUBES

#15
20080164007
2008-07-10

Method of making a folded condenser tube

#16
20080141872
2008-06-19

Pressing Method for Sealing Heat Pipe

#17
20080087711
2008-04-17

Conveying apparatus for objects and welding apparatus with such a conveying apparatus

#18
20060157539
2006-07-20

Hot reduced coil tubing

#19
20050249965
2005-11-10

Continuously manufactured colored metallic products and method of manufacture of such products

#20
20050082345
2005-04-21

Device for production of a tube