APARATO PARA REALIZAR OPERACIONES ARITMETICAS LOS INVIDENTES.,申请号ES19880001140U-传众专利搜索

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发明名称	APARATO PARA REALIZAR OPERACIONES ARITMETICAS LOS INVIDENTES.
摘要
申请公布号	ES1004955(Y)	申请公布日期	1989.04.01
申请号	ES19880001140U	申请日期	1988.04.13
申请人	ESCANERO MARTINEZ JESUS IGNACIO	发明人
分类号	G09B21/02;(IPC1-7):G09B21/02	主分类号	G09B21/02
代理机构		代理人
主权项
地址

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