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发明名称
Méthode manuelle d'étude de la langue par symboles et couleurs
摘要
申请公布号
FR1521793(A)
申请公布日期
1968.04.19
申请号
FR19670104968
申请日期
1967.05.02
申请人
发明人
DECHERF MARIE-THERESE
分类号
G09B19/06
主分类号
G09B19/06
代理机构
代理人
主权项
地址
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