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发明名称
摘要
申请公布号
JPS54162225(U)
申请公布日期
1979.11.13
申请号
JP19780059712U
申请日期
1978.05.02
申请人
发明人
分类号
G09B15/00;G10H1/00;G10H1/32;H04R1/00;H04R1/02;H04R1/28;(IPC1-7):G10H1/00
主分类号
G09B15/00
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