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发明名称
Système d'interrogation totale mais individualisée en classe et d'instruction-programme collective
摘要
申请公布号
FR1434967(A)
申请公布日期
1966.04.15
申请号
FR19640999341
申请日期
1964.12.21
申请人
DIDASCO
发明人
分类号
G09B5/00
主分类号
G09B5/00
代理机构
代理人
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