Réglette à l'usage des aveugles pour le calcul,申请号FRD1065424-传众专利搜索

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发明名称	Réglette à l'usage des aveugles pour le calcul
摘要
申请公布号	FR1065424(A)	申请公布日期	1954.05.25
申请号	FRD1065424	申请日期	1951.11.05
申请人		发明人	DIAZ LORENZO PANDO
分类号	G06G1/04	主分类号	G06G1/04
代理机构		代理人
主权项
地址

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