TREA

Gerd Dunkel

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  • Lunen, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Cap positioning mechanism
    • Patent number 4,447,174
    • Issue date May 8, 1984
    • Gewerkschaft Eisenhutte Westfalia
    • Kunibert Becker
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Two part mine roof support unit
    • Patent number 4,401,399
    • Issue date Aug 30, 1983
    • Gewerkschaft Eisenhutte Westfalia
    • Kunibert Becker
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Mine roof support assembly
    • Patent number 4,217,067
    • Issue date Aug 12, 1980
    • Gewerkschaft Eisenhutte Westfalia
    • Gunter Lagodka
    • E21 - EARTH DRILLING MINING