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发明名称
ROHRFÖRMIGE SCHRAUBVERBINDUNG MIT HOHEM DREHMOMENT UND MIT EINEM MODIFIZIERTEM SCHRAUBPROFIL
摘要
申请公布号
DE60310688(D1)
申请公布日期
2007.02.08
申请号
DE20036010688
申请日期
2003.02.25
申请人
WEATHERFORD/LAMB INC.
发明人
HASHEM, J.
分类号
F16L15/06;E21B43/10
主分类号
F16L15/06
代理机构
代理人
主权项
地址
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