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发明名称
Anordning ved nedihullsventil
摘要
申请公布号
NO20004940(A)
申请公布日期
2002.04.03
申请号
NO20000004940
申请日期
2000.10.02
申请人
PEDERSEN, BERNT REINHARDT
发明人
TENNOEY, ANDOR SVEIN;PEDERSEN, BERNT REINHARDT
分类号
E21B21/10;(IPC1-7):E21B
主分类号
E21B21/10
代理机构
代理人
主权项
地址
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