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经营范围
发明名称
Shut-off valve
摘要
申请公布号
DK164713(B)
申请公布日期
1992.08.03
申请号
DK19870002761
申请日期
1987.05.29
申请人
NORSKE STATS OLJESELSKAP A.S., DEN
发明人
HORVEI, KNUT
分类号
E21B;E21B34/00;F16K15/00;F16K31/12;F16K43/00;(IPC1-7):F16K43/00
主分类号
E21B
代理机构
代理人
主权项
地址
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