Patents by Inventor David A. Whitbread

David A. Whitbread has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Push-pull toggle clamp
    Patent number: D269153
    Type: Grant
    Filed: November 7, 1980
    Date of Patent: May 31, 1983
    Assignee: HMC-Brauer Limited
    Inventor: David A. Whitbread
  • Toggle clamp
    Patent number: D276126
    Type: Grant
    Filed: July 20, 1981
    Date of Patent: October 30, 1984
    Assignee: HMC-Brauer Limited
    Inventors: Ian B. Fraser, David A. Whitbread