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发明名称
UN SISTEMA PARA PERFORAR Y, SIMULTANEAMENTE, REFORZAR EL CONTORNO DE LA PERFORACIËN EN MATERIAL LAMINA ALOJABLE EN ARCHIVADORES
摘要
申请公布号
ES286030(A2)
申请公布日期
1963.10.16
申请号
ES19300002860
申请日期
1963.03.13
申请人
PRIETO VILLALEN, ROBERTO
发明人
分类号
(IPC1-7):B42
主分类号
(IPC1-7):B42
代理机构
代理人
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地址
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