TREA

Richard J. Ehmke

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  • Beatrice, NE, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Tender
    • Patent number D294583
    • Issue date Mar 8, 1988
    • Dempster Industries, Inc.
    • John E. Blumer
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Washdown sprayer tank
    • Patent number D279921
    • Issue date Jul 30, 1985
    • Dempster Industries Inc.
    • John E. Blumer
    • D23 - Environmental heating and cooling
  • Information Patent Grant

    Spreader
    • Patent number 4,367,848
    • Issue date Jan 11, 1983
    • Dempster Industries, Inc.
    • Richard J. Ehmke
    • E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES