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发明名称
KOPPELSTUK VOOR BUIZEN.
摘要
申请公布号
NL9200610(A)
申请公布日期
1993.01.18
申请号
NL19920000610
申请日期
1992.04.01
申请人
OTIS ENGINEERING CORPORATION TE DALLAS, TEXAS, VER. ST. V. AM.
发明人
分类号
E21B17/04;F16D1/091;F16D1/096;F16L19/06;F16L19/10
主分类号
E21B17/04
代理机构
代理人
主权项
地址
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