Patents by Inventor Heinz Hamm

Heinz Hamm 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).

  • Photographic camera
    Patent number: D251975
    Type: Grant
    Filed: February 28, 1977
    Date of Patent: May 29, 1979
    Assignee: Rollei-Werke Franke & Heidecke
    Inventors: Jochen Kramer, Hans Schonfeld, Friedrich Papke, Paul Greger, Heinz Hamm
  • Photographic camera
    Patent number: D253475
    Type: Grant
    Filed: October 26, 1977
    Date of Patent: November 20, 1979
    Assignee: Rollei-Werke Franke & Heidecke
    Inventors: Jochen Kramer, Hans Schonfeld, Friedrich Papke, Dieter Mankau, Heinz Hamm, Lothar Westerweck