TREA

Directional Wireline Service, Inc.

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  • Homa, LA, US
Organizations

Patents Grantslast 30 patents

  • Information Patent Grant

    Decentralized casing hole puncher
    • Patent number 5,111,885
    • Issue date May 12, 1992
    • Directional Wireline Service, Inc.
    • Donald V. Umphries
    • E21 - EARTH DRILLING MINING