Document Type and Number:
Japanese Patent JPS4980213
Kind Code:
U
Application Number:
JP12483372U
Publication Date:
July 11, 1974
Filing Date:
October 28, 1972
Export Citation:
International Classes:
G11B15/087; G11B15/02; G11B27/22; (IPC1-7): G11B15/02; G11B27/22