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Wladimir Rituper
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Duisburg, DE
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Patents Grants
last 30 patents
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Patent Grant
Method and apparatus for the production of a longitudinal seam weld...
Patent number
8,042,368
Issue date
Oct 25, 2011
Thyssenkrupp Steel AG
Michael Brüggenbrock
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information
Patent Grant
Device for producing a longitudinally welded hollow profile using a...
Patent number
7,909,226
Issue date
Mar 22, 2011
Thyssenkrupp Steel AG
Michael Brüggenbrock
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Patents Applications
last 30 patents
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Patent Application
Method and device for producing a longitudinally welded hollow profile
Publication number
20090114703
Publication date
May 7, 2009
THYSSENKRUPP STEEL AG
Michael Bruggenbrock
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...