Plural Load Devices With Selective Substitution Of Load Device Or Electrode Patents (Class 315/90)
  • 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