1990-07-05
1991-09-17
Gellner, Michael L.
G03B 1906
Patent
active
050499106
ABSTRACT:
Photographic cameras having a plurality of film holders, each carrying a respective type of film, exposable through a common lens and shutter system and having control means for selectively exposing the film carried by the respective film holders either simultaneously or individually, as desired.
REFERENCES:
patent: 2169422 (1939-08-01), Kelley
patent: 3034412 (1962-05-01), Bohm et al.
patent: 3045573 (1962-07-01), Wanner
patent: 4124856 (1978-11-01), Tarr
patent: 4193675 (1980-03-01), Plummer
patent: 4814811 (1989-03-01), Saito et al.
Gellner Michael L.
Sperry Robert M.
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