TREA

Frederick W. Smith

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  • Mount Clemens, MI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Self-propelled rotary lawn mower
    • Patent number 4,041,679
    • Issue date Aug 16, 1977
    • Seifert; Lester H.
    • Lester H. Seifert
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...