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发明名称
Enkelttur foringsrorkutter- og fjerneanordning
摘要
申请公布号
NO325348(B1)
申请公布日期
2008.04.07
申请号
NO20000001727
申请日期
2000.04.04
申请人
BAKER HUGHES INC
发明人
HAUGHTON DAVID B;DAVIS JOHN P
分类号
E21B29/00;E21B31/16;E21B31/20
主分类号
E21B29/00
代理机构
代理人
主权项
地址
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