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发明名称
摘要
申请公布号
JPS623995(Y2)
申请公布日期
1987.01.29
申请号
JP19810011216U
申请日期
1981.01.28
申请人
发明人
分类号
H04R9/04;H04R9/06;(IPC1-7):H04R9/04
主分类号
H04R9/04
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