Patents by Inventor Walter G. Lehmann

Walter G. Lehmann 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 and flash lamp selection system
    Patent number: 3969736
    Abstract: A photographic camera and multi-flash arrangement therefor in which a multiplicity of linearly arrayed flash lamps mounted in a cartridge, wherein one or more of said lamps may be inoperative, may be automatically and sequentially sampled and the operative ones of said lamps automatically selected for effecting a photograhic exposure.
    Type: Grant
    Filed: December 26, 1973
    Date of Patent: July 13, 1976
    Assignee: Polaroid Corporation
    Inventor: Walter G. Lehmann