TREA

Richard P. Lehmann

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  • Kingsford, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Centrifugal force material transfer apparatus
    • Patent number 5,103,966
    • Issue date Apr 14, 1992
    • Lake Shore, Inc.
    • Richard P. Lehmann
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Mine shaft guide system
    • Patent number 4,601,607
    • Issue date Jul 22, 1986
    • Lake Shore, Inc.
    • Richard P. Lehmann
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Bunker for tunnel boring
    • Patent number 4,353,676
    • Issue date Oct 12, 1982
    • Lake Shore, Inc.
    • Henry V. Mikulich
    • B60 - VEHICLES IN GENERAL