Document Type and Number:
Japanese Patent JPS5184562
Kind Code:
U
Application Number:
JP366274U
Publication Date:
July 07, 1976
Filing Date:
December 27, 1974
Export Citation:
International Classes:
G04B19/04; G04B19/30; G04B19/34; (IPC1-7): G04B19/04; G04B19/30