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发明名称
Opplåsbar nedihullspakning
摘要
申请公布号
NO970671(D0)
申请公布日期
1997.02.14
申请号
NO19970000671
申请日期
1997.02.14
申请人
TECH LINE OIL TOOLS AS
发明人
DRECHSLER, JAN;UNSGAARD, TOM
分类号
E21B33/127
主分类号
E21B33/127
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代理人
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