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发明名称
WERKWIJZE EN MIDDELEN VOOR HET TREKKEN VAN EEN REEKS POMPSTANGEN.
摘要
申请公布号
NL8202568(A)
申请公布日期
1983.03.16
申请号
NL19820002568
申请日期
1982.06.24
申请人
FIBERFLEX PRODUCTS, INC. TE BIG SPRINGS, TEXAS, VER. ST. V. AM.
发明人
分类号
E21B17/06;E21B43/12;(IPC1-7):F04B47/02
主分类号
E21B17/06
代理机构
代理人
主权项
地址
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