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发明名称
Latch mechanism guide
摘要
申请公布号
US2004262005(A1)
申请公布日期
2004.12.30
申请号
US20040823384
申请日期
2004.04.12
申请人
BAKER HUGHES INC
发明人
HARMON STEPHEN K;KUCK MARC D;SWANSON ROY E;BRADFORD FRANCINE A
分类号
E21B31/18;E21B31/20;(IPC1-7):E21B31/00
主分类号
E21B31/18
代理机构
代理人
主权项
地址
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