|
| US4226563 | 9 Feb 1979 | 7 Oct 1980 | Nippon Steel Corporation | Automatic article-laying apparatus |
| US4443994 | 11 Sep 1980 | 24 Apr 1984 | | Bricklayer apparatus |
| US4708328 | 10 Apr 1985 | 24 Nov 1987 | Mannesmann AG | Brick-lining a metallurgical vessel |
| US4726569 | 7 Sep 1984 | 23 Feb 1988 | AML Arbetsmiljolaboratoriet | Preparation of tundishes |
| US4749324 | 30 Mar 1987 | 7 Jun 1988 | | Apparatus for lifting and positioning construction material |
| US4786227 | 5 Jun 1987 | 22 Nov 1988 | Paul Wurth, S.A. | Automated apparatus for lining the inside wall of a vessel with bricks |
| US4827689 | 16 Jan 1987 | 9 May 1989 | Paul Wurth S.A. | Automated apparatus for lining the wall of a vessel with bricks |
| US5018923 | 12 Oct 1989 | 28 May 1991 | Paul Wurth S.A. | Automated bricklaying apparatus |
| US5489032 | 6 Oct 1993 | 6 Feb 1996 | International Masonry Institute | Manipulator for masonry wall construction and the like |
| US6370837 | 4 Aug 1999 | 16 Apr 2002 | Anthony B. McMahon | System for laying masonry blocks |
| US6732871 | 13 Sep 2000 | 11 May 2004 | | Cargo transport and handling device |
