Document Type and Number:
Japanese Patent JPS4945303
Kind Code:
Y1
Application Number:
JP3441769U
Publication Date:
December 11, 1974
Filing Date:
April 15, 1969
Export Citation:
International Classes:
G03B31/04; G03B31/00; H02P5/50; H02P5/52; (IPC1-7): G03B31/00; H02P5/50