TREA

John F. Halpenny

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  • Ottawa, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Railroad track rail
    • Patent number 4,079,889
    • Issue date Mar 21, 1978
    • The Raymond Lee Organization, Inc.
    • John F. Halpenny
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES