Document Type and Number:
Japanese Patent JPS56145166
Kind Code:
U
Application Number:
JP4167980U
Publication Date:
November 02, 1981
Filing Date:
March 31, 1980
Export Citation:
International Classes:
H04N5/225; G02B27/00; G03B41/00; (IPC1-7): H04N5/26; G02B27/00; G03B41/00