TREA

Met-Tech Industries, Inc.

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Organization

  • Cambridge, OH, US
Organizations

Patents Grantslast 30 patents

  • Information Patent Grant

    Expansion shell assembly
    • Patent number 7,722,295
    • Issue date May 25, 2010
    • Met-Tech Industries, Inc.
    • James D. Cook
    • E21 - EARTH DRILLING MINING