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发明名称
Anordning ved rotasjonsventil
摘要
申请公布号
NO20030840(A)
申请公布日期
2004.08.25
申请号
NO20030000840
申请日期
2003.02.24
申请人
REIMERS NILS
发明人
REIMERS NILS
分类号
E21B;E21B21/10;E21B34/10;E21B34/14;E21B37/06;(IPC1-7):E21B34/14
主分类号
E21B
代理机构
代理人
主权项
地址
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