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经营范围
发明名称
Circulation control valve and associated method
摘要
申请公布号
AU2008310949(B2)
申请公布日期
2012.01.12
申请号
AU20080310949
申请日期
2008.10.08
申请人
HALLIBURTON ENERGY SERVICES, INC.
发明人
WILLIAMSON, JIMMIE R.
分类号
E21B34/06
主分类号
E21B34/06
代理机构
代理人
主权项
地址
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