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经营范围
发明名称
MEJORAS A HERRAMIENTA PARA POZOS
摘要
申请公布号
MX156726(A)
申请公布日期
1988.09.27
申请号
MX19830196159
申请日期
1983.02.04
申请人
DAILEY OIL TOOLS INC.
发明人
CHUAN CHIN TENG
分类号
E21B12/02;E21B17/07;(IPC1-7):E21B11/00
主分类号
E21B12/02
代理机构
代理人
主权项
地址
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