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发明名称
DOWNHOLE MULTIPLE BORE TUBING APPARATUS
摘要
申请公布号
CA2688926(A1)
申请公布日期
2010.06.30
申请号
CA20092688926
申请日期
2009.12.21
申请人
SMITH INTERNATIONAL, INC.
发明人
INGRAHAM, DEREK;CRAM, BRUCE
分类号
E21B17/00;E21B17/06
主分类号
E21B17/00
代理机构
代理人
主权项
地址
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