| Number | Name | Date | Kind |
|---|---|---|---|
| D192878 | Miuller | May 1962 | |
| D300471 | Szymanek | Mar 1989 | |
| D300874 | Szymanek | Apr 1989 | |
| D333530 | Boundy | Feb 1993 | |
| D404161 | Herst et al. | Jan 1999 | |
| D405908 | Herst et al. | Feb 1999 | |
| 4698733 | Griffin | Oct 1987 | |
| 5171085 | Jaksich | Dec 1992 |
| Entry |
|---|
| Lighting magazine, Feb. 1959, p. 29, Mus fluorescent lighting fixture. |