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发明名称
Self adjusting debris excluder sub
摘要
申请公布号
AU2009214904(A1)
申请公布日期
2009.08.20
申请号
AU20090214904
申请日期
2009.02.10
申请人
BAKER HUGHES INCORPORATED
发明人
AUBREY C. MILLS
分类号
E21B21/00;E21B31/08;E21B33/129;E21B37/00
主分类号
E21B21/00
代理机构
代理人
主权项
地址
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