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发明名称
Fishing tool and method
摘要
A fishing tool includes a grapple and an exciter in vibration transmissive communication with the grapple and method.
申请公布号
US8261830(B2)
申请公布日期
2012.09.11
申请号
US20100873568
申请日期
2010.09.01
申请人
XU RICHARD YINGQING;BAKER HUGHES INCORPORATED
发明人
XU RICHARD YINGQING
分类号
E21B31/00
主分类号
E21B31/00
代理机构
代理人
主权项
地址
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