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发明名称
Stromningskontrollapparat til bruk i en bronn samt fremgangsmate ved bruk av samme
摘要
申请公布号
NO324492(B1)
申请公布日期
2007.10.29
申请号
NO20030001280
申请日期
2003.03.20
申请人
WEATHERFORD/LAMB INC
发明人
LAURITZEN ERIC J;BODE JEFFREY;CAMERON JOHN
分类号
E21B34/08;E21B43/12
主分类号
E21B34/08
代理机构
代理人
主权项
地址
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