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发明名称
Appareil d'enseignement
摘要
申请公布号
FR1382145(A)
申请公布日期
1964.12.18
申请号
FR19630946092
申请日期
1963.08.30
申请人
发明人
COSTE PIERRE MAX ANTOINE
分类号
G09B3/04
主分类号
G09B3/04
代理机构
代理人
主权项
地址
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