Sistema de discos superpuestos comprendiendo las tablas de sumar, restar, multiplicar y dividir.,申请号ES19080000109U-传众专利搜索

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发明名称	Sistema de discos superpuestos comprendiendo las tablas de sumar, restar, multiplicar y dividir.
摘要
申请公布号	ES10908(Y)	申请公布日期	1945.11.16
申请号	ES19080000109U	申请日期	1944.11.17
申请人	TAPIA GARNICA, PÍO	发明人
分类号		主分类号
代理机构		代理人
主权项
地址

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