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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS4842704
Kind Code:
A
Application Number:
JP7578871A
Publication Date:
June 21, 1973
Filing Date:
September 30, 1971
Export Citation:
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International Classes:
H04R19/06; H04R19/10; (IPC1-7): H04R19/10



 
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