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发明名称
摘要
申请公布号
JPS5718879(Y2)
申请公布日期
1982.04.20
申请号
JP19750037993U
申请日期
1975.03.19
申请人
发明人
分类号
H04R1/04;H04R19/00;H04R19/01;H04R19/04;(IPC1-7):H04R19/01
主分类号
H04R1/04
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