TREA

Douglas A. Puariea

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  • St. Paul, MN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rail car door linkage
    • Patent number 4,266,486
    • Issue date May 12, 1981
    • The Maxson Corporation
    • Douglas A. Puariea
    • B61 - RAILWAYS
  • Information Patent Grant

    Side dumping railroad car
    • Patent number 4,240,355
    • Issue date Dec 23, 1980
    • The Maxson Corporation
    • Douglas A. Puariea
    • B61 - RAILWAYS
  • Information Patent Grant

    Articulated schnabel Car
    • Patent number 4,160,420
    • Issue date Jul 10, 1979
    • The Maxson Corporation
    • Richard W. Hackbarth
    • B61 - RAILWAYS
  • Information Patent Grant

    Railway flat car hand brake system
    • Patent number 4,102,212
    • Issue date Jul 25, 1978
    • The Maxson Corporation
    • Richard W. Hackbarth
    • B61 - RAILWAYS