TREA

Lawrence A. J. van Eyken

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  • Kingston, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    All weather switch for railroads
    • Patent number 4,534,527
    • Issue date Aug 13, 1985
    • Canadian Patents and Development Limited
    • Lawrence A. J. van Eyken
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES