TREA

Helmut Kolditz

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  • Wolfenbuttel, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Drilling machine
    • Patent number 4,732,226
    • Issue date Mar 22, 1988
    • Turmag Turbo-Maschinen AG and Gesellschaft Fuer Strahlen- und Umweltforschung...
    • Wolfgang Ebeling
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Drilling machine
    • Patent number 4,705,120
    • Issue date Nov 10, 1987
    • Turmag Turbo-Maschinen-AG, Nuesse & Graefer
    • Wolfgang Ebeling
    • E21 - EARTH DRILLING MINING