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发明名称
ZENTRIERVORRICHTUNG
摘要
申请公布号
DE69703553(T2)
申请公布日期
2001.05.31
申请号
DE19976003553T
申请日期
1997.08.15
申请人
WEATHERFORD/LAMB INC., WILMINGTON
发明人
REINHOLDT, BERND;LORENZ, JORG;STOKKA, ARNOLD
分类号
E21B17/10;(IPC1-7):E21B17/10;E21B17/22
主分类号
E21B17/10
代理机构
代理人
主权项
地址
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