Werner Demny

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Dusseldorf-Oberkassel, DT

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Patents Grantslast 30 patents

Information Patent Grant
Process and rolling mill for stretch reduction of tubes
- Patent number 4,086,800
- Issue date May 2, 1978
- Friedrich Kocks GmbH & Co.
- Werner Demny
- B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...