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发明名称
Smörerör for tetning mot en wire som innföres i et borehull
摘要
申请公布号
NO20020738(D0)
申请公布日期
2002.02.14
申请号
NO20020000738
申请日期
2002.02.14
申请人
MACKINTOSH, KENNETH
发明人
MACKINTOSH, KENNETH
分类号
E21B3/02;E21B17/02;E21B21/02;E21B33/072;(IPC1-7):E21B
主分类号
E21B3/02
代理机构
代理人
主权项
地址
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