TREA

Rolf Sander

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  • Essen, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Cutter drum
    • Patent number 4,119,350
    • Issue date Oct 10, 1978
    • Gebr. Eickhoff, Maschinenfabrik und Eisengiesserei, m.b.H.
    • Rolf Sander
    • E21 - EARTH DRILLING MINING