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发明名称
ANORDNING VED KJERNEBORING, MED ET I ET YTTERROER BEVEGBART ANORDNET INNERROER FOR AVKUTTING OG OPPHENTING AV BOREKJERNER
摘要
申请公布号
NO152380(B)
申请公布日期
1985.06.10
申请号
NO19780001553
申请日期
1978.05.02
申请人
DIAMANT BOART,
发明人
LAMBOT, JOSEPH HONORE,
分类号
E21B25/02;(IPC1-7):E21B25/02
主分类号
E21B25/02
代理机构
代理人
主权项
地址
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