TREA

John E. Blumer

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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

    Rotary chute for spreader
    • Patent number 4,469,210
    • Issue date Sep 4, 1984
    • Dempster Industries Inc.
    • John E. Blumer
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL