Document Type and Number:
Japanese Patent JPS5419854
Kind Code:
Y2
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Application Number:
JP5026674U
Publication Date:
July 20, 1979
Filing Date:
May 02, 1974
Export Citation:
International Classes:
H04R9/02; B60R11/02; H04B1/08; H04R1/02; (IPC1-7): H04R1/02; B60R11/02; H04B1/08