| Number | Date | Country | Kind |
|---|---|---|---|
| 3-3893 | Feb 1991 | JPX |
| Number | Name | Date | Kind |
|---|---|---|---|
| D291433 | Inai et al. | Aug 1987 | |
| D299919 | Fukutomi | Feb 1989 | |
| D304334 | Ohya et al. | Oct 1989 | |
| D321190 | Ito et al. | Oct 1991 | |
| D323162 | Nagata | Jan 1992 |
| Entry |
|---|
| Stereo Review, Apr. 1988, p. 12, Bottom left--Rockford Fosgate model RF2000 power amplifier. |