Wolfgang Grau

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Boblingen-Dagersheim, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for the production of circumferentially compre...
- Patent number 5,615,481
- Issue date Apr 1, 1997
- Witzig & Frank Turmatic GmbH
- Walter Viegener
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Turret-type machine tool
- Patent number 5,452,502
- Issue date Sep 26, 1995
- Witzig & Frank Turmatic GmbH
- Heinz Walter
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Automatic transfer machine tool with circular supply movement
- Patent number 4,473,930
- Issue date Oct 2, 1984
- Witzig & Frank Maschinenbaugesellschaft mbH
- Heinz Bezner
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR