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发明名称
UTENSILIO DIDACTICO.
摘要
申请公布号
ES1017144(Y)
申请公布日期
1992.06.01
申请号
ES19910001091U
申请日期
1991.04.12
申请人
RODRIGUEZ ACEBEDO LUIS
发明人
分类号
G09B3/02;(IPC1-7):G09B3/02
主分类号
G09B3/02
代理机构
代理人
主权项
地址
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