Document Type and Number:
Japanese Patent JPS57131058
Kind Code:
U
Application Number:
JP1488781U
Publication Date:
August 16, 1982
Filing Date:
February 06, 1981
Export Citation:
International Classes:
H04N1/028; H03K5/00; H04N1/40; (IPC1-7): H04N1/40; H03K5/00; H04N1/028