Document Type and Number:
Japanese Patent JPS553584
Kind Code:
Y2
Application Number:
JP5797574U
Publication Date:
January 28, 1980
Filing Date:
May 20, 1974
Export Citation:
International Classes:
G03B23/02; G11B23/08; G11B23/087; (IPC1-7): G11B23/08
Next Patent: SIGNAL PROCESSING METHOD