IP Library › Granted Patent US 4,538,890
Granted Patent Utility
US 4,538,890 · App. 06/608,802

Camera provided with a mechanism for detecting the film speed of a film

Inventors: Sunao Ishizaka, Osamu Maida
Patented Case View Patent ↗
Granted: Sep 3, 1985 Filed: May 10, 1984
Inventors
Sunao Ishizaka
Osamu Maida
Assignee (at issue)
Nippon Kogaku K.K.

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Quick Facts
Patent No.
US 4,538,890
App. No.
06/608,802
Filed
1984-05-10
Granted
1985-09-03
Kind
A