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发明名称
Fremgangsmate og anordning ved arbeidsrorkopling
摘要
申请公布号
NO315807(B3)
申请公布日期
2008.12.15
申请号
NO20020000654
申请日期
2002.02.08
申请人
BLAFRO TOOLS AS
发明人
BLAKSETH OLA;JOHNSEN FRODE
分类号
E21B17/01;E21B17/07
主分类号
E21B17/01
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代理人
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