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发明名称
UNDERGROUND PIPE REPLACEMENT TECHNIQUE
摘要
申请公布号
EP0711390(A1)
申请公布日期
1996.05.15
申请号
EP19940922670
申请日期
1994.07.22
申请人
TENBUSCH, ALBERT A., II
发明人
TENBUSCH, ALBERT A., II
分类号
E21B7/30;F16L55/165;(IPC1-7):F16L1/00
主分类号
E21B7/30
代理机构
代理人
主权项
地址
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