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发明名称
Convertible tubular scraper
摘要
申请公布号
AU2003201277(B2)
申请公布日期
2008.05.29
申请号
AU20030201277
申请日期
2003.03.13
申请人
BAKER HUGHES INCORPORATED
发明人
JAMES M MCNICOL;GREGORY L HERN
分类号
E21B37/02;E21B17/046;E21B17/06
主分类号
E21B37/02
代理机构
代理人
主权项
地址
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