Document Type and Number:
Japanese Patent JPS4312590
Kind Code:
Y1
Application Number:
JP5402065U
Publication Date:
May 30, 1968
Filing Date:
July 02, 1965
Export Citation:
International Classes:
G03B31/06; G03B31/00; G11B15/02; G11B31/00; (IPC1-7): G11B15/02; G03B31/00