|
| US4195431 | 12 Dic 1977 | 1 Abr 1980 | | Graphic displays employing electroluminescent panels |
| US4674211 | 29 Oct 1985 | 23 Jun 1987 | The Architectural Glass Company, Inc. | Frame structure |
| US4835661 | 6 May 1988 | 30 May 1989 | | Enhanced lighting unit for displayable materials |
| US5251392 | 8 Feb 1991 | 12 Oct 1993 | Vemco Corporation | Artificial window |
| US5943801 | 29 Jul 1998 | 31 Ago 1999 | | System and method for backlighting a display |
| US7229191 | 7 Jun 2004 | 12 Jun 2007 | Genlyte Thomas Group LLC | Industrial up light reflector |
