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| US4252291 | 5 Abr 1978 | 24 Feb 1981 | | Apparatus and method for molding building modules |
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| US4650150 | 5 Ago 1985 | 17 Mar 1987 | Opako, S.A. | Mold apparatus for vertical elements of concrete |
| US5230904 | 9 Oct 1991 | 27 Jul 1993 | Komo Machine, Inc. | Apparatus for fully supporting appliance cabinet interior |
| US6626414 | 25 Jun 1999 | 30 Sep 2003 | GDS Group Limited | Concrete casting sliding corner system |
