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发明名称
Anordning for foring av en brönn
摘要
申请公布号
NO954299(A)
申请公布日期
1995.12.07
申请号
NO19950004299
申请日期
1995.10.27
申请人
DRILLFLEX
发明人
BERTET, ERIC;GUEGUEN, JEAN-MARIE;SALTEL, JEAN-LOUIS;SIGNORI, FREDERIC
分类号
D04C1/06;E21B17/00;E21B29/10;E21B36/00;E21B43/10;(IPC1-7):E21B17/00
主分类号
D04C1/06
代理机构
代理人
主权项
地址
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