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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS4953701
Kind Code:
U
Application Number:
JP9554472U
Publication Date:
May 13, 1974
Filing Date:
August 15, 1972
Export Citation:
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International Classes:
H04S7/00; H04R5/00; (IPC1-7): H04R5/00



 
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