Photography – Camera detail – Film restraining means or pressure plate
Patent
1998-05-18
1999-05-25
Gray, David M.
Photography
Camera detail
Film restraining means or pressure plate
G03B 1724
Patent
active
059077328
ABSTRACT:
Four spring legs are integrally formed around a flat plate portion of a pressure plate spring such that these four spring legs extend in a clockwise direction seen from the center of the flat plate portion. Hooks engaged with hook engaging portions formed on the rear face of a pressure plate are integrally formed at end tips of the respective spring legs.
REFERENCES:
patent: 4457607 (1984-07-01), Sekine et al.
patent: 5257054 (1993-10-01), Kameyama
Asahi Kogaku Kogyo Kabushiki Kaisha
Gray David M.
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