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经营范围
发明名称
WORK STRING CONTROLLER
摘要
申请公布号
EP2310625(A1)
申请公布日期
2011.04.20
申请号
EP20090784600
申请日期
2009.06.11
申请人
HALLIBURTON ENERGY SERVICES, INC.
发明人
BORGSTADT, JUSTIN
分类号
B25J9/16;E21B19/086
主分类号
B25J9/16
代理机构
代理人
主权项
地址
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