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发明名称
摘要
申请公布号
JPS54138512(U)
申请公布日期
1979.09.26
申请号
JP19780035651U
申请日期
1978.03.20
申请人
发明人
分类号
H04R25/04;H04R25/00;(IPC1-7):H04R25/04
主分类号
H04R25/04
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代理人
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