Document Type and Number:
Japanese Patent JPS5142339
Kind Code:
Y2
Application Number:
JP5394172U
Publication Date:
October 15, 1976
Filing Date:
May 09, 1972
Export Citation:
International Classes:
G11B15/093; G11B15/02; G11B15/22; (IPC1-7): G11B15/02; G11B15/22