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发明名称
Stötte for kjedelinjestigerör
摘要
申请公布号
NO973192(A)
申请公布日期
1998.02.23
申请号
NO19970003192
申请日期
1997.07.09
申请人
DEEP OIL TECHNOLOGY INC
发明人
FINN, LYLE DAVID
分类号
E21B17/01;E21B19/00;(IPC1-7):E21B17/01
主分类号
E21B17/01
代理机构
代理人
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