Document Type and Number:
Japanese Patent JPS5231408
Kind Code:
U
Application Number:
JP11659575U
Publication Date:
March 05, 1977
Filing Date:
August 26, 1975
Export Citation:
International Classes:
G11B15/02; G11B15/44; (IPC1-7): G11B15/18; G11B15/10; G11B15/44