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发明名称
Låsbar motorsammenstilling for bruk i et brönnhull
摘要
申请公布号
NO20020240(D0)
申请公布日期
2002.01.16
申请号
NO20020000240
申请日期
2002.01.16
申请人
SMITH INTERNATIONAL INC
发明人
CRUICKSHANK, BRIAN;BOYCE, JOHN PATRICK;CATON, CHRISTOPHER JOHN;MCGARIAN, BRUCE
分类号
E21B4/02;E21B7/06;(IPC1-7):E21B
主分类号
E21B4/02
代理机构
代理人
主权项
地址
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