TREA

Melvin J. Kliewer

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  • Fairview, OK, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Handles for slips used on drilling rigs
    • Patent number 4,458,934
    • Issue date Jul 10, 1984
    • Kliewer; Larry D.
    • Harlo W. Janzen
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Power tongs
    • Patent number 4,445,403
    • Issue date May 1, 1984
    • Kliewer; Larry D.
    • Harlo W. Janzen
    • E21 - EARTH DRILLING MINING