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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS51131940
Kind Code:
U
Application Number:
JP5118775U
Publication Date:
October 23, 1976
Filing Date:
April 17, 1975
Export Citation:
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International Classes:
H04R19/00; H04R19/02; (IPC1-7): H04R19/02



 
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