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发明名称
摘要
申请公布号
JPH0521597(U)
申请公布日期
1993.03.19
申请号
JP19910077119U
申请日期
1991.08.30
申请人
发明人
分类号
H04R3/00;H04R19/04;(IPC1-7):H04R3/00
主分类号
H04R3/00
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代理人
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