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发明名称
BOHRLOCHVERROHRUNG MIT EROSIONSCHUTZ FÜR INNERES SIEB
摘要
申请公布号
DE69806947(T2)
申请公布日期
2003.02.20
申请号
DE19986006947T
申请日期
1998.09.03
申请人
WEATHERFORD/LAMB, INC.
发明人
GILLESPIE, A.;UBAN, A.
分类号
B01D29/15;B01D46/24;E21B43/08;(IPC1-7):B01D29/15
主分类号
B01D29/15
代理机构
代理人
主权项
地址
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