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发明名称
摘要
申请公布号
JPH0488194(U)
申请公布日期
1992.07.30
申请号
JP19900403678U
申请日期
1990.12.18
申请人
发明人
分类号
H04R9/02;(IPC1-7):H04R9/02
主分类号
H04R9/02
代理机构
代理人
主权项
地址
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