Document Type and Number:
Japanese Patent JPS56117721
Kind Code:
U
Application Number:
JP1497780U
Publication Date:
September 09, 1981
Filing Date:
February 08, 1980
Export Citation:
International Classes:
G11C11/42; G02F1/01; G02F1/03; G02F1/05; G11C13/04; (IPC1-7): G02F1/01; G11C11/42; G11C13/04