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发明名称
摘要
申请公布号
JPS53147667(U)
申请公布日期
1978.11.20
申请号
JP19770053169U
申请日期
1977.04.26
申请人
发明人
分类号
H04R17/00;H01L41/04;H03H9/05;(IPC1-7):H04R17/00;H03H9/04
主分类号
H04R17/00
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