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发明名称
Koplingsanordning
摘要
申请公布号
NO941811(D0)
申请公布日期
1994.05.13
申请号
NO19940001811
申请日期
1994.05.13
申请人
PUMPTECH NV
发明人
LEISING, LAWRENCE J.
分类号
E21B17/046;E21B17/06;E21B34/14;(IPC1-7):E21B17/02
主分类号
E21B17/046
代理机构
代理人
主权项
地址
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