TREA

Calvin L. Coy

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  • Chapin, SC, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Split workhead
    • Patent number 4,899,664
    • Issue date Feb 13, 1990
    • Tamper Corp.
    • Roy J. Moore
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Ballast brooms
    • Patent number 4,554,697
    • Issue date Nov 26, 1985
    • Canron Corp.
    • Calvin L. Coy
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES