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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5663189
Kind Code:
U
Application Number:
JP14505879U
Publication Date:
May 27, 1981
Filing Date:
October 19, 1979
Export Citation:
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International Classes:
H04R9/00; H04R7/04; (IPC1-7): H04R9/00; H04R7/04