TREA

Donald W. Schaper

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  • Alliance, OH, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Selective beam gantry crane
    • Patent number 4,747,745
    • Issue date May 31, 1988
    • Marathon LeTourneau Company
    • Harvey J. Pippen
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Stabilizing device
    • Patent number 4,273,242
    • Issue date Jun 16, 1981
    • Marathon LeTourneau Company
    • Donald W. Schaper
    • B66 - HOISTING LIFTING HAULING