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经营范围
发明名称
Shear activated safety valve system
摘要
申请公布号
GB2467475(A)
申请公布日期
2010.08.04
申请号
GB20100007703
申请日期
2010.05.07
申请人
HALLIBURTON ENERGY SERVICES, INC.
发明人
ADAM D WRIGHT;VINCENT PAUL ZELLER;HAROLD W NIVENS;ROGER L SCHULTZ
分类号
E21B34/04;E21B34/06
主分类号
E21B34/04
代理机构
代理人
主权项
地址
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