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发明名称
摘要
申请公布号
JPS6244638(Y2)
申请公布日期
1987.11.26
申请号
JP19810146403U
申请日期
1981.09.30
申请人
发明人
分类号
H04R27/04;H04R1/30;(IPC1-7):H04R27/04
主分类号
H04R27/04
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代理人
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