TREA

Colin Butler

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  • Putney, VT, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Self-contained automatic gate system
    • Patent number 5,373,664
    • Issue date Dec 20, 1994
    • Colin Butler
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Gate support and operating mechanism
    • Patent number 5,035,082
    • Issue date Jul 30, 1991
    • Embassy Gates Associates, L.P.
    • Colin Butler
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Assault-resistant gate
    • Patent number 4,916,859
    • Issue date Apr 17, 1990
    • Embassy Gate Associates, L.P.
    • Colin Butler
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES