TREA

Rochumer Eisenhuette Heintzmann GmbH & Co. KG

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  • Bochum, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Hydraulic prop
    • Patent number 4,572,480
    • Issue date Feb 25, 1986
    • Rochumer Eisenhuette Heintzmann GmbH & Co. KG
    • Peter Heintzmann
    • E21 - EARTH DRILLING MINING