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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5244164
Kind Code:
B2
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Application Number:
JP10436571A
Publication Date:
November 05, 1977
Filing Date:
December 22, 1971
Export Citation:
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International Classes:
H04M11/04; G08B27/00; H04M1/60; H04M3/42; H04Q5/00



 
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