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发明名称
WELLHEAD DEVICE FOR RETAINING THE SOLID PARTICLES CARRIED BY THE PRODUCTION FLUID
摘要
申请公布号
EP0968354(B1)
申请公布日期
2002.01.30
申请号
EP19980914935
申请日期
1998.03.17
申请人
TOTAL
发明人
BLANCHET, CHARLES
分类号
E21B33/03;E21B43/34;(IPC1-7):E21B43/34;B01D29/05
主分类号
E21B33/03
代理机构
代理人
主权项
地址
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