TREA

Richard H. Marvin

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  • Philadelphia, PA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Steerable truck for a railway vehicle
    • Patent number 4,295,428
    • Issue date Oct 20, 1981
    • The Budd Company
    • William W. Dickhart
    • B61 - RAILWAYS
  • Information Patent Grant

    Railway car trap door lift
    • Patent number 4,273,498
    • Issue date Jun 16, 1981
    • The Budd Company
    • William W. Dickhart
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE