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发明名称
摘要
申请公布号
JPH0370493(U)
申请公布日期
1991.07.15
申请号
JP19890131204U
申请日期
1989.11.10
申请人
发明人
分类号
H04R9/02;(IPC1-7):H04R9/02
主分类号
H04R9/02
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代理人
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