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经营范围
发明名称
JUEGO DIDACTICO MATEMATICO
摘要
申请公布号
ES249756(Y)
申请公布日期
1981.01.01
申请号
ES19560002497U
申请日期
1980.03.31
申请人
发明人
分类号
G09B1/04;(IPC1-7):09B1/04
主分类号
G09B1/04
代理机构
代理人
主权项
地址
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