TREA

William G. Roller

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  • Purdy, MO, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Plural battery control apparatus
    • Patent number 4,081,738
    • Issue date Mar 28, 1978
    • G & R Industries, Inc.
    • William G. Roller
    • B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
  • Information Patent Grant

    Live well valve
    • Patent number 3,964,510
    • Issue date Jun 22, 1976
    • G & R Industries, Inc.
    • William G. Roller
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Motor housing for an electric trolling motor
    • Patent number 3,954,082
    • Issue date May 4, 1976
    • Roller; William G.
    • William G. Roller
    • B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT