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发明名称
Ledekile for foringsror
摘要
申请公布号
NO328950(B1)
申请公布日期
2010.06.28
申请号
NO20040001569
申请日期
2004.04.16
申请人
BAKER HUGHES INC
发明人
SWANSON JR ROY E;HARMON STEPHEN K;KUCK MARE D
分类号
E21B7/08;E21B7/06;E21B23/01
主分类号
E21B7/08
代理机构
代理人
主权项
地址
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