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Patents Grantslast 30 patents

Information Patent Grant
Expandable and contractible coiler mandrel
- Patent number 7,454,937
- Issue date Nov 25, 2008
- SMS Demag AG
- Ulrich Patzelt
- C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...

Patents Applicationslast 30 patents

Information Patent Application
Expandable and Contractible Coiler Mandrel
- Publication number 20070220940
- Publication date Sep 27, 2007
- Ulrich Patzelt
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...