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发明名称
FremgangsmÕte og anordning ved fortrengningsverktøy
摘要
申请公布号
NO20011447(D0)
申请公布日期
2001.03.21
申请号
NO20010001447
申请日期
2001.03.21
申请人
HOEILAND, ODDGEIR
发明人
HOEILAND, ODDGEIR
分类号
E21B;E21B7/12;E21B21/01;E21B21/12;E21B33/035;(IPC1-7):E21B
主分类号
E21B
代理机构
代理人
主权项
地址
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