Number | Name | Date | Kind |
---|---|---|---|
D284793 | Engel | Jul 1986 | |
D287287 | Futatsugi et al. | Dec 1986 | |
D290513 | Blaisdell et al. | Jun 1987 | |
D291358 | Witte | Aug 1987 | |
D302733 | Sangen et al. | Aug 1989 | |
D302861 | Tayama | Aug 1989 | |
D304377 | Fujita et al. | Oct 1989 | |
4961027 | Muessli | Oct 1990 |
Number | Date | Country |
---|---|---|
0346782 | Dec 1989 | FRX |
Entry |
---|
Licht, Jun. 1986, p. 431, Sylvania Fluorescent lamp. |