Document Type and Number:
Japanese Patent JPS552783
Kind Code:
B2
Application Number:
JP9477972A
Publication Date:
January 22, 1980
Filing Date:
September 20, 1972
Export Citation:
International Classes:
H04N3/16; H03K3/02; H03K4/50; H03K4/501; H03K4/90; H03L1/02; (IPC1-7): H04N3/16; H03K4/50; H03L1/02