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经营范围
发明名称
HERRAMIENTA DE POZO Y METODO DE APLICACION
摘要
申请公布号
AR226797(A1)
申请公布日期
1982.08.31
申请号
AR19750261649
申请日期
1975.12.17
申请人
FMC CORP
发明人
分类号
E21B33/043;(IPC1-7):E21B11/00
主分类号
E21B33/043
代理机构
代理人
主权项
地址
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