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发明名称
Anordning for utnyttelse av rotasjonsenergi i en roterende bore-/verktøystreng i en havbunn
摘要
申请公布号
NO307901(B1)
申请公布日期
2000.06.13
申请号
NO19980003861
申请日期
1998.08.21
申请人
NOREN AS
发明人
MEITZNER, OLE EGEDE
分类号
E21B;F04B47/00;(IPC1-7):F04B47/00
主分类号
E21B
代理机构
代理人
主权项
地址
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