Document Type and Number:
Japanese Patent JPS434433
Kind Code:
Y1
Application Number:
JP8515664U
Publication Date:
February 26, 1968
Filing Date:
October 31, 1964
Export Citation:
International Classes:
G03B31/06; G03B31/00; G11B5/02; G11B31/00; (IPC1-7): G11B5/02; G03B31/00