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发明名称
METHOD FOR TRENCHLESS REPLACEMENT OF A PIPELINE
摘要
<p>A method for trenchless replacement of a pipeline provides for laying a new pipeline (1) coaxially and outside the old one (2) and then removing the old pipeline (2).</p>
申请公布号
WO1991003673(A1)
申请公布日期
1991.03.21
申请号
SU1990000205
申请日期
1990.08.21
申请人
发明人
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主分类号
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