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发明名称
FIELD-ASSEMBLABLE BOW-SPRING CASING CENTRALIZER AND METHOD OF MAKING A CENTRALIZER
摘要
申请公布号
EP2148972(B1)
申请公布日期
2011.03.23
申请号
EP20080746600
申请日期
2008.04.23
申请人
FRANK'S INTERNATIONAL, INC.
发明人
BUYTAERT, JEAN;MILLER, EUGENE, EDWARD
分类号
E21B17/10
主分类号
E21B17/10
代理机构
代理人
主权项
地址
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