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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5136169
Kind Code:
B2
Application Number:
JP7797772A
Publication Date:
October 07, 1976
Filing Date:
August 03, 1972
Export Citation:
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International Classes:
H04H20/76; H04H20/78; H04H60/15; H04H60/31; H04N7/14; H04N7/173; H04H9/00