TREA

John L. Thorson

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  • Wauwatosa, WI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Automatic tie plate sorting conveyor
    • Patent number 5,038,914
    • Issue date Aug 13, 1991
    • Oak Industries, Inc.
    • Dennis J. Cotic
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Automatic tie plate setting machine
    • Patent number 4,974,518
    • Issue date Dec 4, 1990
    • Oak Industries, Inc.
    • Dennis J. Cotic
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
  • Information Patent Grant

    Automatic tie plate sorting conveyor
    • Patent number 4,909,375
    • Issue date Mar 20, 1990
    • Oak Industries, Inc.
    • Dennis J. Cotic
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES