1983-01-19
1984-10-30
Griffin, Donald A.
354213, G03B 118, G03B 1904
Patent
active
044797052
ABSTRACT:
A spool drive type camera in which the taking up of the film is carried out only by the rotative force of the spool, while the one-frame advancement of the film is controlled by the revolution of the sprocket as it is driven by the film transportation is provided with automatic switching means for selection of a mode in which the above-described one-frame advancement is effected by the rotative force of the winding up system when a film is not loaded in the above-described camera.
REFERENCES:
patent: 2879704 (1959-03-01), Winkler et al.
patent: 3135182 (1964-06-01), Hintze et al.
patent: 3633480 (1972-01-01), Kondo
patent: 4171892 (1979-10-01), Kozuki et al.
Endo Takashi
Matsuda Mutsuhide
Suzuki Toyotosi
Tamamura Hideo
Canon Kabushiki Kaisha
Griffin Donald A.
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