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发明名称
EXTERNAL PIPE GRAB
摘要
申请公布号
RU2061836(C1)
申请公布日期
1996.06.10
申请号
SU19925064188
申请日期
1992.10.08
申请人
PUSTOVOJTENKO IVAN PAVLOVICH;KALYNA LEON MIKHAJLOVICH;PANIN NIKOLAJ MITROFANOVICH;VOROZHTSOV SERGEJ YUREVICH
发明人
PUSTOVOJTENKO IVAN PAVLOVICH;KALYNA LEON MIKHAJLOVICH;PANIN NIKOLAJ M;VOROZHTSOV SERGEJ YUREVICH
分类号
E21B31/18;(IPC1-7):E21B31/18
主分类号
E21B31/18
代理机构
代理人
主权项
地址
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