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发明名称
Appareil d'auto-enseignement
摘要
申请公布号
FR1344255(A)
申请公布日期
1963.11.29
申请号
FR19620898282
申请日期
1962.05.22
申请人
发明人
COHEN-SEAT GILBERT
分类号
G09B7/06;G09B9/00;G09B19/16
主分类号
G09B7/06
代理机构
代理人
主权项
地址
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