| Number | Name | Date | Kind |
|---|---|---|---|
| D208306 | Fossella | Aug 1967 | |
| D235655 | Clement et al. | Jul 1975 | |
| D263710 | Asano | Apr 1982 | |
| D266509 | Marshall | Oct 1982 | |
| D269679 | Morooka | Jul 1983 | |
| D279010 | Ceradelli et al. | May 1985 |
| Entry |
|---|
| Business Comunication Products Div./3m, whisper writer AD, teleprinter. |
| Computer Design, 5-1982, p. 79, Lexidata keyboard. |
| Datamation, 1-1981, p. 168, terminal base. |
| NCR worksaver firststep brochure, p. 3, keyboard. |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 715191 | Mar 1985 |