Document Type and Number:
Japanese Patent JPS5025125
Kind Code:
Y1
Application Number:
JP13812170U
Publication Date:
July 29, 1975
Filing Date:
December 31, 1970
Export Citation:
International Classes:
G03B31/06; G03B31/00; G11B5/02; G11B15/00; G11B15/02; G11B20/02; G11B31/00; (IPC1-7): G11B5/02; G03B31/00; G11B15/00; G11B31/00