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发明名称
TETTEANORDNING.
摘要
申请公布号
NO864808(D0)
申请公布日期
1986.12.01
申请号
NO19860004808
申请日期
1986.12.01
申请人
NORSKE STATS OLJESELSKAP A/S, DET
发明人
HORVEI, KNUT
分类号
E21B34/04;F16K3/26;F16K43/00;(IPC1-7):F16J/;F16K/
主分类号
E21B34/04
代理机构
代理人
主权项
地址
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