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发明名称
摘要
申请公布号
JPS62193282(U)
申请公布日期
1987.12.08
申请号
JP19860080621U
申请日期
1986.05.28
申请人
发明人
分类号
G09B27/04;(IPC1-7):G09B27/04
主分类号
G09B27/04
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代理人
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