Gerhard Kummerhoff

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Hemer, DE

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Patents Grantslast 30 patents

Information Patent Grant
Four-high roll or six-high roll stand having laterally supported wo...
- Patent number 5,007,273
- Issue date Apr 16, 1991
- Sundwiger Eisenhutte Maschinenfabrik Grah & Co.
- Gerhard Kummerhoff
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Winding device for metal strips
- Patent number 4,199,117
- Issue date Apr 22, 1980
- Sundwiger Eisenhutte Maschinenfabrik Grah & Co.
- Friedrich Muller
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...