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发明名称
Method and apparatus for bit run and retrieved casing hanger locking device
摘要
申请公布号
GB201621189(D0)
申请公布日期
2017.01.25
申请号
GB20160021189
申请日期
2016.12.13
申请人
Dril-Quip, Inc.
发明人
分类号
主分类号
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