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发明名称
摘要
申请公布号
JPS57191191(U)
申请公布日期
1982.12.03
申请号
JP19810077622U
申请日期
1981.05.29
申请人
发明人
分类号
H04R3/04;H04R3/12;H04R3/14;(IPC1-7):H04R3/04
主分类号
H04R3/04
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代理人
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