Hermann Koppers

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Duisburg, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method for continuously straightening thin metal strips
- Patent number 4,819,470
- Issue date Apr 11, 1989
- BWG Bergwerk-und Walzwerk-Maschinenbau GmbH
- Oskar Noe
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
Information Patent Grant
Method of and apparatus for processing strip
- Patent number 4,744,275
- Issue date May 17, 1988
- BWG Bergwerk-und Walzwerk-Maschinenbaum GmbH
- Hermann Koppers
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR