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发明名称
Dispositif permettant l'étude de différentes disciplines scolaires
摘要
申请公布号
FR1376650(A)
申请公布日期
1964.10.31
申请号
FR19630947341
申请日期
1963.09.12
申请人
发明人
LIGIER LUCIEN ALFRED
分类号
G09B29/00
主分类号
G09B29/00
代理机构
代理人
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