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经营范围
发明名称
Apparatus and methods for preventing or limiting rotation of cementing plugs
摘要
申请公布号
GB2421532(B)
申请公布日期
2007.01.24
申请号
GB20060004584
申请日期
2004.06.25
申请人
HALLIBURTON ENERGY SERVICES, INC.
发明人
CRAIG W RODDY;ANTHONY M BADALAMENTI
分类号
E21B33/16;E21B29/00;E21B33/127
主分类号
E21B33/16
代理机构
代理人
主权项
地址
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