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发明名称
摘要
申请公布号
JPS559136(U)
申请公布日期
1980.01.21
申请号
JP19780090724U
申请日期
1978.06.30
申请人
发明人
分类号
H04R1/02;(IPC1-7):H04R1/02
主分类号
H04R1/02
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代理人
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