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发明名称
Anordning for rotasjon av stiger°r
摘要
申请公布号
NO990728(D0)
申请公布日期
1999.02.17
申请号
NO19990000728
申请日期
1999.02.17
申请人
LMG MARIN AS
发明人
KJERSEM, GEIR L.;PETTERSEN, PAAL
分类号
E21B;(IPC1-7):E21B
主分类号
E21B
代理机构
代理人
主权项
地址
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