Heinz-Gerd Schlutz

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Marl, DE

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Patents Grantslast 30 patents

Information Patent Grant
Roof cap assembly with supporting cylinders for roof support mechanism
- Patent number 4,773,795
- Issue date Sep 27, 1988
- Klockner-Becorit GmbH
- Willy Watermann
- E21 - EARTH DRILLING MINING