TREA

David C. Roeker

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  • Hudson, WI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Dual hand control
    • Patent number 4,569,431
    • Issue date Feb 11, 1986
    • Qualey; Terryl K.
    • David C. Roeker
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...