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发明名称
Rorforbindelsesanordning
摘要
申请公布号
NO329615(B1)
申请公布日期
2010.11.22
申请号
NO20000005684
申请日期
2000.11.10
申请人
BAKER HUGHES INC
发明人
PETERSON ELMER R;HALL BOBBY E;BAYCROFT PERRY D;BROOME JOHN T;VOLL BENN A
分类号
E21B43/08;E21B34/06;E21B43/04;F16L39/00
主分类号
E21B43/08
代理机构
代理人
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