Document Type and Number:
Japanese Patent JPS49128246
Kind Code:
U
Application Number:
JP2694773U
Publication Date:
November 02, 1974
Filing Date:
March 02, 1973
Export Citation:
International Classes:
G03D15/00; G03B31/00; G11B5/84; G11B5/848; (IPC1-7): G03B31/00; G11B5/84