Document Type and Number:
Japanese Patent JPS5292705
Kind Code:
U
Application Number:
JP17830375U
Publication Date:
July 11, 1977
Filing Date:
December 30, 1975
Export Citation:
International Classes:
G11B15/02; G11B15/10; G11B15/18; (IPC1-7): G11B15/10; G11B15/18