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发明名称
MANUAL-VISUAL DEVICE FOR TEACHING(OT) MATHEMATICS
摘要
申请公布号
HU2521(U)
申请公布日期
2003.05.28
申请号
HU20020000076U
申请日期
2002.03.18
申请人
CSORDASNE ANDA EVA
发明人
CSORDASNE ANDA,EVA
分类号
G09B1/00;(IPC1-7):G09B1/00
主分类号
G09B1/00
代理机构
代理人
主权项
地址
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