| Number | Name | Date | Kind |
|---|---|---|---|
| 2106839 | Gilbert | Feb 1938 | |
| 3613604 | Butler | Oct 1971 | |
| 3617729 | Lassen | Nov 1971 | |
| 3664063 | Ware | May 1972 | |
| 4359249 | Fischer | Nov 1982 | |
| 4799133 | Strzalko et al. | Jan 1989 | |
| 4926294 | Beaulieu et al. | May 1990 | |
| 5040101 | Aspenwall | Aug 1991 | |
| 5097969 | Maxworthy | Mar 1992 | |
| 5269231 | Johnson | Dec 1993 | |
| 5297863 | Richardson et al. | Mar 1994 |
| Entry |
|---|
| "Phantom.TM. Lighting Brochure", Illuminations Lighting Design, Houston, Texas, no publication date. |