Patents Assigned to World Wide Stationary Manufacturing Company, Ltd.
  • Fastening binder ring mechanisms to binders
    Patent number: 7073968
    Abstract: Ring binder mechanism with special pronged fasteners secured thereto for fastening it to a binder, the special fastener per se, and a method of making the fasteners involving sheet metal stamping.
    Type: Grant
    Filed: September 17, 2001
    Date of Patent: July 11, 2006
    Assignee: World Wide Stationary Manufacturing Company, Ltd.
    Inventors: Chun Yuen To, Weng Io Ng