Document Type and Number:
Japanese Patent JPS5247850
Kind Code:
B2
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Application Number:
JP8430272A
Publication Date:
December 06, 1977
Filing Date:
August 22, 1972
Export Citation:
International Classes:
H04N1/00; H04H20/00; H04H20/28; H04H20/86; H04H20/88; H04N1/40; H04H5/00