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发明名称
摘要
申请公布号
JPS5721434(Y2)
申请公布日期
1982.05.10
申请号
JP19710029203U
申请日期
1971.04.15
申请人
发明人
分类号
H04R3/00;(IPC1-7):H04R3/00
主分类号
H04R3/00
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代理人
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