TREA

Don D. Fitzgerald

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  • Houston, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Downhole combination tool
    • Patent number 5,230,387
    • Issue date Jul 27, 1993
    • Magrange, Inc
    • Robert L. Waters
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Downhole combination tool
    • Patent number 5,064,006
    • Issue date Nov 12, 1991
    • Magrange, Inc
    • Robert L. Waters
    • E21 - EARTH DRILLING MINING