Patents by Inventor Francis O. Perry

Francis O. Perry 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).

  • Digital multimeter or the like
    Patent number: D246956
    Type: Grant
    Filed: April 2, 1976
    Date of Patent: January 17, 1978
    Assignee: Logical Technical Services Corporation
    Inventor: Francis O. Perry
  • Digital multimeter or the like
    Patent number: D251548
    Type: Grant
    Filed: June 3, 1977
    Date of Patent: April 10, 1979
    Assignee: Logical Technical Services Corp.
    Inventor: Francis O. Perry