TREA

Dennis A. Wichkoski

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  • Pasadena, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Single trip tubing hanger assembly
    • Patent number 4,373,584
    • Issue date Feb 15, 1983
    • Baker International Corporation
    • Raphael J. Silberman
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Latch assembly and method
    • Patent number 4,248,307
    • Issue date Feb 3, 1981
    • Baker International Corporation
    • Raphael J. Silberman
    • E21 - EARTH DRILLING MINING