Patents Represented by Attorney Frederick H. Brustman

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  • Focusing screen
    Patent number: 3971051
    Abstract: The invention is a focusing screen with an integral split image rangefinder located substantially away from the geometric center of the focusing screen. Such an arrangement improves photographic image acuity and it encourages better photographic composition.
    Type: Grant
    Filed: June 29, 1973
    Date of Patent: July 20, 1976
    Assignee: Polaroid Corporation
    Inventors: Philip G. Baker, Bruce K. Johnson