Document Type and Number:
Japanese Patent JPS5129808
Kind Code:
Y1
Application Number:
JP13526570U
Publication Date:
July 27, 1976
Filing Date:
December 31, 1970
Export Citation:
International Classes:
G03B31/06; G03B31/00; G11B15/18; G11B15/66; G11B15/675; G11B23/04; G11B23/44; G11B31/00; (IPC1-7): G03B31/00; G11B15/18; G11B15/66; G11B23/04; G11B31/00