|
| US4283894 | 7 Abr 1980 | 18 Ago 1981 | | Decorative arch form |
| US4540847 | 22 Dic 1981 | 10 Sep 1985 | CDA Industries, Inc. | Electrified ceiling system |
| US4549375 | 7 Jun 1983 | 29 Oct 1985 | Simplex Ceiling Corporation | Ceiling construction |
| US4718213 | 30 Ene 1987 | 12 Ene 1988 | | Decorative beam assembly |
| US4848054 | 26 Feb 1988 | 18 Jul 1989 | | Miniature ceiling beam T-bar cover cap |
| US4926606 | 14 Nov 1988 | 22 May 1990 | | Ornamental ceiling system |
| US5031377 | 7 Dic 1990 | 16 Jul 1991 | McCalla/Lackey Products Corporation | Artificial beam |
| US5253462 | 24 Ene 1992 | 19 Oct 1993 | | Fluted metal lay-in subceiling panel |
| US5560159 | 5 Ene 1995 | 1 Oct 1996 | | Decorative beam assembly |
| US5899044 | 22 May 1997 | 4 May 1999 | Hollowood, Inc. | Post enclosure |
| US5930947 | 19 Ago 1997 | 3 Ago 1999 | | Landscape system apparatus |
