TREA

Subterranean Tools Inc.

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Organization

  • Denver, CO, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rolling cutter arrangement
    • Patent number 4,129,392
    • Issue date Dec 12, 1978
    • Subterranean Tools Inc.
    • Homer B. Lupton
    • E21 - EARTH DRILLING MINING

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