Document Type and Number:
Japanese Patent JPS5124941
Kind Code:
U
Application Number:
JP9784074U
Publication Date:
February 24, 1976
Filing Date:
August 14, 1974
Export Citation:
International Classes:
G03B31/00; G11B5/00; G11B20/02; (IPC1-7): G03B31/00; G11B5/00