| Number | Date | Country | Kind |
|---|---|---|---|
| 10-24346 | Aug 1998 | JPX |
| Number | Name | Date | Kind |
|---|---|---|---|
| D310221 | Kobayashi | Aug 1990 | |
| D310669 | Sogabe | Sep 1990 | |
| D311538 | Kobayashi | Oct 1990 | |
| D336297 | Sekita | Jun 1993 | |
| 5452274 | Thompson | Sep 1995 |
| Entry |
|---|
| Catalog, "Walkman," pp. 10 & 12, Sony (Mar. 1992). |
| Catalog, "Walkman," pp. 5 & 6, Sony (Feb. 1998). |