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经营范围
发明名称
Fremgangsmåte og anordning for å lette innföring av kveilrör i en brönn og for å lösne fastsittende gjenstander i en brönn
摘要
申请公布号
NO962429(D0)
申请公布日期
1996.06.07
申请号
NO19960002429
申请日期
1996.06.07
申请人
BAKKE OIL TOOLS AS
发明人
BAKKE, STIG
分类号
E21B23/04;E21B31/113;(IPC1-7):E21B
主分类号
E21B23/04
代理机构
代理人
主权项
地址
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