Document Type and Number:
Japanese Patent JPS5440007
Kind Code:
Y2
Application Number:
JP7003475U
Publication Date:
November 27, 1979
Filing Date:
May 23, 1975
Export Citation:
International Classes:
G11B17/028; G11B3/61; G11B25/04; (IPC1-7): G11B25/04; G11B3/62