Title:
COUNTING STAGE ELECTRIC SHUTTER CAPABLE OF EXPOSURE MEASUREMENT AT SHOOTING AND OPEN APERTURES
Document Type and Number:
Japanese Patent JPS52137332
Kind Code:
A
Inventors:
IBUSAWA TSUKUMO
Application Number:
JP5335276A
Publication Date:
November 16, 1977
Filing Date:
May 12, 1976
Export Citation:
Assignee:
ASAHI OPTICAL CO LTD
International Classes:
G03B7/097; G03B7/14; G03B17/18; (IPC1-7): G03B7/14; G03B17/18