Document Type and Number:
Japanese Patent JPS51101936
Kind Code:
U
Application Number:
JP1967875U
Publication Date:
August 16, 1976
Filing Date:
February 14, 1975
Export Citation:
International Classes:
G03B21/11; G03B23/00; G03B23/04; G06K21/00; (IPC1-7): G03B21/11; G06F15/40