Electric shutter for cameras

Details Electric shutter for cameras Electric shutter for cameras

1978-01-17

1980-09-16

Hix, L. T.

354289, G03B 908, G03B 1700

Patent

active

042226520

ABSTRACT:
An electric shutter for cameras wherein a shutter closing motion can be started by a manual operation from outside the camera body even when the automatic closing motion of the shutter can be no longer made due to the consumption of the current source battery.

REFERENCES:
patent: 2978970 (1961-04-01), Fahlenberg
patent: 3766840 (1973-10-01), Loseries
patent: 3772979 (1973-11-01), Imura
patent: 3906532 (1975-09-01), Kuramoto et al.
patent: 3961338 (1976-06-01), Sahara
patent: 4133608 (1979-01-01), Tanaka
patent: 4134658 (1979-01-01), Suzuki et al.

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