Document Type and Number:
Japanese Patent JPS5429768
Kind Code:
Y2
Application Number:
JP11485173U
Publication Date:
September 20, 1979
Filing Date:
October 02, 1973
Export Citation:
International Classes:
G03B23/02; G11B15/66; G11B23/08; G11B23/087; (IPC1-7): G11B23/08; G03B23/02