TREA

Quartech Engineering Limited

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  • GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method and apparatus for cleaning boreholes
    • Patent number 6,695,058
    • Issue date Feb 24, 2004
    • Quartech Engineering Limited
    • Clive French
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Hydraulic control assembly
    • Patent number 6,595,296
    • Issue date Jul 22, 2003
    • Quartech Engineering Limited
    • Clive John French
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Valve assembly
    • Patent number 6,508,309
    • Issue date Jan 21, 2003
    • Quartech Engineering Limited
    • Clive John French
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

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