Document Type and Number:
Japanese Patent JPS5242725
Kind Code:
Y2
Application Number:
JP10945371U
Publication Date:
September 28, 1977
Filing Date:
November 22, 1971
Export Citation:
International Classes:
G11B5/127; G11B5/133; G11B5/29; (IPC1-7): G11B5/28; G11B5/12