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| US4105073 | 26 Sep 1977 | 8 Ago 1978 | | Tubing conveyed sand consolidating method | | US5582251 | 17 Abr 1995 | 10 Dic 1996 | Baker Hughes Incorporated Exxon Production Research Company | Downhole mixer | | US7913758 | 15 Nov 2005 | 29 Mar 2011 | Qinetiq Limited | Oil well perforators and method of use |
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