PERFECCIONAMIENTOS INTRODUCIDOS EN LOS APARATOS DESTINADOS A PERFORAR TERRENOS CON EXTRACCIËN DE TIERRA,申请号ES19460002378-传众专利搜索

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发明名称	PERFECCIONAMIENTOS INTRODUCIDOS EN LOS APARATOS DESTINADOS A PERFORAR TERRENOS CON EXTRACCIËN DE TIERRA
摘要
申请公布号	ES237846(A3)	申请公布日期	1958.04.01
申请号	ES19460002378	申请日期	1957.09.30
申请人	ARREGUI CONSTRUCCIONES, S.A.	发明人
分类号	E21C;(IPC1-7):E21C	主分类号	E21C
代理机构		代理人
主权项
地址

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