Document Type and Number:
Japanese Patent JPS4941775
Kind Code:
Y1
Application Number:
JP11589170U
Publication Date:
November 15, 1974
Filing Date:
November 21, 1970
Export Citation:
International Classes:
G01R13/20; G01R13/22; H04N5/64; (IPC1-7): H04N5/64; G01R13/22