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经营范围
发明名称
DOWNHOLE SURGE PRESSURE REDUCTION SYSTEM AND METHOD OF USE
摘要
申请公布号
EP0991847(A4)
申请公布日期
2000.12.27
申请号
EP19980918649
申请日期
1998.04.22
申请人
ALLAMON, JERRY P.
发明人
ALLAMON, JERRY, P.;BURGESS, CAROLL, KENNEDY;MILLER, JACK, E.;VONDERVORT, KURT, D.
分类号
E21B21/10;E21B33/05;E21B33/16;E21B34/14;(IPC1-7):E21B33/13;E21B23/08;E21B33/12;F16L55/04
主分类号
E21B21/10
代理机构
代理人
主权项
地址
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