Document Type and Number:
Japanese Patent JPS4873588
Kind Code:
U
Application Number:
JP11908371U
Publication Date:
September 13, 1973
Filing Date:
December 16, 1971
Export Citation:
International Classes:
G09G3/22; G09F9/30; G11C11/28; (IPC1-7): G09F9/30; G09F9/34; G11C11/28