Document Type and Number:
Japanese Patent JPS5040223
Kind Code:
U
Application Number:
JP9274973U
Publication Date:
April 24, 1975
Filing Date:
August 08, 1973
Export Citation:
International Classes:
G03B1/42; G03B21/00; G03B21/14; G03B31/00; H04N5/76; H04N5/84; (IPC1-7): G03B21/00; G03B21/14; G03B31/00; H04N5/76