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发明名称
Lofteanordning
摘要
申请公布号
NO20042671(D0)
申请公布日期
2004.06.25
申请号
NO20040002671
申请日期
2004.06.25
申请人
NESTESTOG PRODUKSJON AS
发明人
NESTESTOG ASMUND
分类号
E21B7/02;E21B19/14;(IPC1-7):E21B19/14
主分类号
E21B7/02
代理机构
代理人
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