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发明名称
摘要
申请公布号
JPH0676963(U)
申请公布日期
1994.10.28
申请号
JP19930024597U
申请日期
1993.04.02
申请人
发明人
分类号
G09B11/10;(IPC1-7):G09B11/10
主分类号
G09B11/10
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代理人
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地址
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