Document Type and Number:
Japanese Patent JPS5219523
Kind Code:
Y2
Application Number:
JP13609073U
Publication Date:
May 06, 1977
Filing Date:
November 28, 1973
Export Citation:
International Classes:
G11B5/78; G03B31/00; G03B31/04; G11B23/34; G11B23/42; G11B27/06; G11B31/00; (IPC1-7): G11B5/78; G03B31/04; G11B23/42; G11B27/06; G11B31/00