F - Mech Eng,Light,Heat,Weapons – 16 – L
Patent
F - Mech Eng,Light,Heat,Weapons
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F16L 1/028 (2006.01) E21B 7/26 (2006.01) E21B 7/28 (2006.01) E21B 7/30 (2006.01) F16L 1/00 (2006.01) F16L 55/165 (2006.01)
Patent
CA 2040424
METHOD FOR TRENCHLESS REPLACEMENT OF A PIPELINE ABSTRACT A method for trenchless replacement of a pipeline, comprising the laying of a new pipeline (1) by way of arranging it coaxially with an old pipeline (2) and out- side it, followed by extraction of the old pipeline (2).
Grigoraschenko Vladimir A.
Isakov Alexandr L.
Kostylev Alexandr D.
Kurlenya Mikhail V.
Nefedov Jury I.
Grigoraschenko Vladimir A.
Institut Gornogo Dela Sibirskogo Otdelenia Akademii Nauk Sssr
Isakov Alexandr L.
Kostylev Alexandr D.
Kurlenya Mikhail V.
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