Document Type and Number:
Japanese Patent JPS5545591
Kind Code:
Y2
Application Number:
JP17366975U
Publication Date:
October 25, 1980
Filing Date:
December 24, 1975
Export Citation:
International Classes:
G11B23/04; G11B15/18; G11B23/00; G11B23/08; (IPC1-7): G11B23/08