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发明名称
FLERTRINS, TURBINDREVET TRYKKFORSTERKER FOR BORING AV OLJEBROENNER
摘要
申请公布号
NO773163(A)
申请公布日期
1978.06.02
申请号
NO19770003163
申请日期
1977.09.14
申请人
KOBE, INC.,
发明人
ERICKSON, JOHN WALDEMAR,
分类号
E21B4/02;E21B4/16;E21B21/00;(IPC1-7):E21B/
主分类号
E21B4/02
代理机构
代理人
主权项
地址
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