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发明名称
Variable bore packer for a blowout preventer
摘要
申请公布号
GB2469968(B)
申请公布日期
2012.06.20
申请号
GB20100013726
申请日期
2009.01.30
申请人
CAMERON INTERNATIONAL CORPORATION
发明人
RAUL ARAUJO;ALEXANDER M MCAULEY;REZA H ZONOZ
分类号
E21B33/06;E21B33/12
主分类号
E21B33/06
代理机构
代理人
主权项
地址
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