Jeu didactique particulièrement destiné à l'enseignement du calcul,申请号FRD693343-传众专利搜索

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发明名称	Jeu didactique particulièrement destiné à l'enseignement du calcul
摘要
申请公布号	FR693343(A)	申请公布日期	1930.11.19
申请号	FRD693343	申请日期	1930.04.04
申请人		发明人	QUER KARL AUGUST
分类号	G09B19/02	主分类号	G09B19/02
代理机构		代理人
主权项
地址

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