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Holdren Brothers, Inc.

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Organization

  • West Liberty, OH, US
Organizations

Patents Grantslast 30 patents

  • Information Patent Grant

    Twist pin
    • Patent number 6,199,917
    • Issue date Mar 13, 2001
    • Holdren Brothers, Inc.
    • James H. Clevenger
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Tank cleaning spray head
    • Patent number D293812
    • Issue date Jan 19, 1988
    • Holdren Brothers, Inc.
    • Samuel O. Roth
    • D23 - Environmental heating and cooling
  • Information Patent Grant

    Silo dig out tool
    • Patent number 4,198,186
    • Issue date Apr 15, 1980
    • Holdren Brothers, Inc.
    • John A. Holdren
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING

Patents Applicationslast 30 patents

Trademarklast 30 trademarks