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经营范围
发明名称
Educational apparatus
摘要
申请公布号
GB9603428(D0)
申请公布日期
1996.04.17
申请号
GB19960003428
申请日期
1996.02.19
申请人
HARDINGE, KEVIN
发明人
分类号
G09B11/04;G09B13/00
主分类号
G09B11/04
代理机构
代理人
主权项
地址
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