| Number | Date | Country | Kind |
|---|---|---|---|
| 54-026387 | Jun 1979 | JPX |
| Number | Name | Date | Kind |
|---|---|---|---|
| D137603 | Mee et al. | Apr 1944 | |
| D247237 | Croup | Feb 1978 | |
| 2952739 | Lehman | Sep 1960 | |
| 4070547 | Dellar | Jan 1978 |
| Entry |
|---|
| Radio Shack Advertising Supplement to 10-15-78, Washington Post, rear cover, TRC-427, External Speaker. |