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发明名称
摘要
申请公布号
JPS5214408(Y2)
申请公布日期
1977.04.01
申请号
JP19710054586U
申请日期
1971.06.24
申请人
发明人
分类号
H04R17/04;H04R17/08;(IPC1-7):H04R17/08
主分类号
H04R17/04
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