Document Type and Number:
Japanese Patent JPS4980212
Kind Code:
U
Application Number:
JP12450072U
Publication Date:
July 11, 1974
Filing Date:
October 27, 1972
Export Citation:
International Classes:
G11B15/03; G11B15/02; G11B27/34; (IPC1-7): G11B15/02; G11B27/14