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发明名称
RECUPERADOR DE TUBOS PERFORADORES EN TRABAJOS DE PERFORACION.
摘要
申请公布号
ES1007392(U)
申请公布日期
1989.01.16
申请号
ES19880002804U
申请日期
1988.09.23
申请人
ABANDO ERENO JAVIER
发明人
分类号
E21B31/12;(IPC1-7):E21B31/12
主分类号
E21B31/12
代理机构
代理人
主权项
地址
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