Projecteur pour l'entraînement à la lecture,申请号FR19660050539-传众专利搜索

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发明名称	Projecteur pour l'entraînement à la lecture
摘要
申请公布号	FR1475854(A)	申请公布日期	1967.04.07
申请号	FR19660050539	申请日期	1966.02.22
申请人		发明人	BIGOT JACQUES
分类号	G03B21/00;G09B17/04	主分类号	G03B21/00
代理机构		代理人
主权项
地址

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