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经营范围
发明名称
Flow restriction device
摘要
申请公布号
GB2468044(A)
申请公布日期
2010.08.25
申请号
GB20100004787
申请日期
2008.10.04
申请人
BAKER HUGHES INCORPORATED
发明人
YANG XU
分类号
E21B43/12;E21B34/06;E21B43/32
主分类号
E21B43/12
代理机构
代理人
主权项
地址
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