Ralf Kohler

Follow

Person

Atteln, DE

People

Patents Grantslast 30 patents

Information Patent Grant
Method of making a hardened sheet metal article
- Patent number 6,878,220
- Issue date Apr 12, 2005
- Benteler Automobiltechnik GmbH
- Ludger Gehringhoff
- C21 - METALLURGY OF IRON

Patents Applicationslast 30 patents

Information Patent Application
Method of making a hardened sheet metal article, and press mold for...
- Publication number 20030066582
- Publication date Apr 10, 2003
- BENTELER AUTOMOBILTECHNIK GMBH & CO. KG
- Ludger Gehringhoff
- C21 - METALLURGY OF IRON