Document Type and Number:
Japanese Patent JPS4974201
Kind Code:
U
Application Number:
JP11770972U
Publication Date:
June 27, 1974
Filing Date:
October 13, 1972
Export Citation:
International Classes:
G11B23/40; G09F3/00; G09F3/10; G11B3/58; (IPC1-7): G11B3/58; G09F3/10; G11B3/84