TREA

David L. Shafer

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  • Hendricks County, IN, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Gear box oil pumping system
    • Patent number 6,457,560
    • Issue date Oct 1, 2002
    • Magic Circle Corporation
    • Arthur Leon Evans
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Grass blower for lawn mower
    • Patent number 6,370,855
    • Issue date Apr 16, 2002
    • Magic Circle Corporation
    • Arthur Leon Evans
    • A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING