Siegfried Grone

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Witten, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method for preventing material to be briquetted from sticking to a...
- Patent number 6,103,159
- Issue date Aug 15, 2000
- Maschinenfabrik Koppern GmbH & Co. KG
- Wolfgang Schutze
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

Information Patent Application
Forming equipment for rolling and profiling disk-shaped and ring-sh...
- Publication number 20020038563
- Publication date Apr 4, 2002
- Rolf Steinmetz
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...