Document Type and Number:
Japanese Patent JPS5258675
Kind Code:
U
Application Number:
JP14523075U
Publication Date:
April 28, 1977
Filing Date:
October 24, 1975
Export Citation:
International Classes:
G04C3/00; G04G17/02; G04G17/08; G04G99/00; (IPC1-7): G04C3/00