Bloc pour l'enseignement de la lecture, du calcul, etc.,申请号FRD1150584-传众专利搜索

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发明名称	Bloc pour l'enseignement de la lecture, du calcul, etc.
摘要
申请公布号	FR1150584(A)	申请公布日期	1958.01.15
申请号	FRD1150584	申请日期	1956.05.15
申请人	LA MAISON DES INSTITUTEURS	发明人
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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