TREA

Charles V. Swafford

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  • Ventura, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Subsurface safety system
    • Patent number 4,606,410
    • Issue date Aug 19, 1986
    • BST Lift Systems, Inc.
    • Billy G. Becker
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Subsurface safety system
    • Patent number 4,508,166
    • Issue date Apr 2, 1985
    • BST Lift Systems, Inc.
    • Billy G. Becker
    • E21 - EARTH DRILLING MINING