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发明名称
摘要
申请公布号
JPS6142151(Y2)
申请公布日期
1986.11.29
申请号
JP19790039754U
申请日期
1979.03.27
申请人
发明人
分类号
H04R17/10;G04C21/02;G10K9/12;H04R17/00;(IPC1-7):G04C21/02
主分类号
H04R17/10
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