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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS55157299
Kind Code:
U
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Application Number:
JP5647479U
Publication Date:
November 12, 1980
Filing Date:
April 26, 1979
Export Citation:
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International Classes:
H04R3/00; G10K11/00; G10K15/08; H03G3/20; H03G3/30; H03H9/30; (IPC1-7): G10K11/00; H03G3/20; H03H9/30



 
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