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发明名称
摘要
申请公布号
JPS6447189(U)
申请公布日期
1989.03.23
申请号
JP19870140782U
申请日期
1987.09.14
申请人
发明人
分类号
G10K15/04;H04R1/34;(IPC1-7):H04R1/34
主分类号
G10K15/04
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代理人
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