| Number | Name | Date | Kind |
|---|---|---|---|
| D302979 | Sanders | Aug 1989 | S |
| D364857 | Chou | Dec 1995 | S |
| D416289 | Hoyt et al. | Nov 1999 | S |
| D428415 | Shibata | Jul 2000 | S |
| 6144746 | Azima et al. | Nov 2000 | A |
| D438530 | Sawhney et al. | Mar 2001 | S |
| Entry |
|---|
| Audio Video International, Jun. 1985, p. 60, Digital 21 Speakers. |