Patents by Inventor Jack M. Duer

Jack M. Duer 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).

  • Microfilm reader
    Patent number: D246980
    Type: Grant
    Filed: May 27, 1976
    Date of Patent: January 17, 1978
    Assignee: Bell & Howell Company
    Inventors: Moto Shimano, Jack M. Duer, Edward R. Wadleigh