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发明名称
Trykkforsterker (B)
摘要
申请公布号
NO951271(D0)
申请公布日期
1995.03.31
申请号
NO19950001271
申请日期
1995.03.31
申请人
STATOIL - DEN NORSKE STATS OLJESELSKAP AS
发明人
STROEM, SIGMUNN;ANDERSEN, TORE;BAEKKEN, ASBJOERN
分类号
E21B7/18;F15B3/00;(IPC1-7):E21B
主分类号
E21B7/18
代理机构
代理人
主权项
地址
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