Wolfgang Beckmann

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Marl, DE

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Patents Grantslast 30 patents

Information Patent Grant
Control system for longwall mining roof supports
- Patent number 4,518,285
- Issue date May 21, 1985
- Gebr. Eickhoff Maschinenfabrik und Eisengiesserei m.b.H.
- Karl-Heinz Weber
- E21 - EARTH DRILLING MINING