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发明名称
Dispositif pour apprendre à lire aux enfants
摘要
申请公布号
FR810639(A)
申请公布日期
1937.03.24
申请号
FRD810639
申请日期
1936.09.17
申请人
发明人
ADRIEN TESTUD,
分类号
G09B17/00
主分类号
G09B17/00
代理机构
代理人
主权项
地址
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