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发明名称
摘要
申请公布号
JPH087439(Y2)
申请公布日期
1996.03.04
申请号
JP19900023106U
申请日期
1990.03.07
申请人
发明人
分类号
H04R1/34;G10K11/28;(IPC1-7):G10K11/28
主分类号
H04R1/34
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