Document Type and Number:
Japanese Patent JPS5139816
Kind Code:
B2
Application Number:
JP6942371A
Publication Date:
October 29, 1976
Filing Date:
September 07, 1971
Export Citation:
International Classes:
G06F3/153; G06F3/14; G06F17/21; G09G5/00; G09G5/22; (IPC1-7): G06F3/14; G06K15/20