Pierre Lefebvre

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Bavay, FR

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Patents Grantslast 30 patents

Information Patent Grant
Method of making a seamless hot-finished steel pipe, and device for...
- Patent number 8,166,792
- Issue date May 1, 2012
- V & M Deutschland GmbH
- Christoph Prasser
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
FORGING MANDREL FOR HOT-FORGING TUBULAR WORKPIECES OF METAL
- Publication number 20100251794
- Publication date Oct 7, 2010
- V & M DEUTSCHLAND GMBH
- Stefan Wiedenmaier
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Application
METHOD OF MAKING A SEAMLESS HOT-FINISHED STEEL PIPE, AND DEVICE FOR...
- Publication number 20090044883
- Publication date Feb 19, 2009
- V & M DEUTSCHLAND GMBH
- Christoph Prasser
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...