Document Type and Number:
Japanese Patent JPS5674571
Kind Code:
U
Application Number:
JP15509179U
Publication Date:
June 18, 1981
Filing Date:
November 08, 1979
Export Citation:
International Classes:
H04N5/253; G03B23/00; H04N5/30; (IPC1-7): H04N5/30; G03B23/00