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发明名称
VERLÄNGUNGSKOMPENSATION IN EINEM HEBEWEKSYSTEM FÜR EINEN BOHRMAST
摘要
申请公布号
AT234415(T)
申请公布日期
2003.03.15
申请号
AT19960943400T
申请日期
1996.12.23
申请人
MARITIME HYDRAULICS A.S.
发明人
VATNE, PER
分类号
E21B19/02;E21B19/084;E21B19/086;(IPC1-7):E21B19/02;B66B7/10
主分类号
E21B19/02
代理机构
代理人
主权项
地址
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