with expandable or contractable clamping ring or band

Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    Clutch of hub of bicycle

    • Publication number 20020179394
    • Publication date Dec 5, 2002
    • Chin-Fu Wu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Walk-behind implement having wrap spring wheel clutches

    • Publication number 20020170797
    • Publication date Nov 21, 2002
    • C. Paul Cox
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...