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发明名称
摘要
申请公布号
JPS5433077(U)
申请公布日期
1979.03.03
申请号
JP19770106424U
申请日期
1977.08.08
申请人
发明人
分类号
H04R17/00;G09F13/22;G10K9/12;H04R17/10;H05B33/00;H05B33/08;(IPC1-7):H04R17/00
主分类号
H04R17/00
代理机构
代理人
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地址
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