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发明名称
摘要
申请公布号
JPH0170492(U)
申请公布日期
1989.05.10
申请号
JP19870163681U
申请日期
1987.10.28
申请人
发明人
分类号
H04R7/22;H04R9/02;(IPC1-7):H04R9/02
主分类号
H04R7/22
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