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Patent Searching and Data


Document Type and Number:
Japanese Patent JPS5426801
Kind Code:
Y2
Application Number:
JP3941274U
Publication Date:
September 04, 1979
Filing Date:
April 05, 1974
Export Citation:
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International Classes:
H03F3/181; H03F3/18; H04R5/04; H04S1/00; (IPC1-7): H04R5/04