Document Type and Number:
Japanese Patent JPS5212517
Kind Code:
U
Application Number:
JP9851075U
Publication Date:
January 28, 1977
Filing Date:
July 15, 1975
Export Citation:
International Classes:
G11B23/04; G11B15/66; G11B15/675; G11B23/00; (IPC1-7): G11B1/00; G11B15/66