TREA

Ronald J. McComb

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  • Youngstown, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Sliding gate for a railroad hopper car
    • Patent number 4,450,773
    • Issue date May 29, 1984
    • The Youngstown Steel Door Co.
    • William E. Fritz
    • B61 - RAILWAYS
  • Information Patent Grant

    Pneumatic hopper discharge outlet
    • Patent number 4,411,560
    • Issue date Oct 25, 1983
    • The Youngstown Steel Door Company
    • Ronald J. McComb
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL