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发明名称
IMPROVED PENETRATION CONDUCTOR PIPE DRIVE SHOE.
摘要
申请公布号
EP0197947(A4)
申请公布日期
1987.04.07
申请号
EP19850903916
申请日期
1985.07.18
申请人
HORVATH, LOUIS
发明人
HORVATH, LOUIS
分类号
E02D13/04;E02D5/72;E21B43/01;(IPC1-7):E02D13/00;E02D7/14
主分类号
E02D13/04
代理机构
代理人
主权项
地址
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