Friedhelm Schefers

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Dortmund-Brackel, DE

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Patents Grantslast 30 patents

Information Patent Grant
Power and liquid supply system for mining machines
- Patent number 4,514,011
- Issue date Apr 30, 1985
- Gebr. Eickhoff Maschinenfabrik und Eisengiesserei m.b.H.
- Klaus Lodwig
- E21 - EARTH DRILLING MINING