Document Type and Number:
Japanese Patent JPS54168834
Kind Code:
U
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Application Number:
JP6686678U
Publication Date:
November 28, 1979
Filing Date:
May 17, 1978
Export Citation:
International Classes:
H04R7/12; H04R7/02; H04R7/18; H04R11/00; H04R11/02; (IPC1-7): H04R11/02; H04R7/02; H04R7/18