TREA

Thomas J. Hatfield

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  • Tempe, AZ, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Wire saw machine
    • Patent number 4,655,191
    • Issue date Apr 7, 1987
    • Motorola, Inc.
    • Raymond C. Wells
    • B28 - WORKING CEMENT, CLAY, OR STONE