IP Library › Granted Patent US 4,351,600
Granted Patent Utility
US 4,351,600 · App. 06/302,072

Flash output control failure warning device of an automatic flash output control speed light

Inventors: Hiroshi Hasegawa, Osamu Maida
Patented Case View Patent ↗
Granted: Sep 28, 1982 Filed: Sep 14, 1981
Inventors
Hiroshi Hasegawa
Osamu Maida
Assignee (at issue)
Nippon Kogaku K.K.

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Quick Facts
Patent No.
US 4,351,600
App. No.
06/302,072
Filed
1981-09-14
Granted
1982-09-28
Kind
A