Document Type and Number:
Japanese Patent JPH0422400
Kind Code:
Y2
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Application Number:
JP19746786U
Publication Date:
May 21, 1992
Filing Date:
December 24, 1986
Export Citation:
International Classes:
H04R17/00; G10K9/12; G10K9/122; H01H57/00; H04R17/10; (IPC1-7): G10K9/12; H04R17/00