| Number | Date | Country | Kind |
|---|---|---|---|
| 1993-25495 | Nov 1993 | KRX |
| Number | Name | Date | Kind |
|---|---|---|---|
| 3870821 | Steury | Mar 1975 | |
| 3976840 | Cleveland et al. | Aug 1976 | |
| 4007443 | Bromberg et al. | Feb 1977 | |
| 4012599 | Meyer | Mar 1977 | |
| 4291198 | Anderson et al. | Sep 1981 | |
| 4307266 | Messina | Dec 1981 | |
| 4427848 | Tsakanikas | Jan 1984 | |
| 4475013 | Lee et al. | Oct 1984 | |
| 4503288 | Kessler | Mar 1985 | |
| 4585908 | Smith | Apr 1986 | |
| 4674112 | Kondraske et al. | Jun 1987 | |
| 4677659 | Dargan | Jun 1987 | |
| 4814972 | Winter et al. | Mar 1989 | |
| 4817129 | Riskin | Mar 1989 | |
| 4918721 | Hashimoto | Apr 1990 | |
| 4969136 | Chamberlin et al. | Nov 1990 | |
| 4975896 | D'Agosto, III et al. | Dec 1990 | |
| 5054058 | Kakizawa | Oct 1991 | |
| 5086456 | Shizawa et al. | Feb 1992 | |
| 5105375 | Lapeyre | Apr 1992 | |
| 5109352 | O'Dell | Apr 1992 | |
| 5184315 | Lapeyre | Feb 1993 | |
| 5245653 | Izumi | Sep 1993 | |
| 5249220 | Moskowitz et al. | Sep 1993 | |
| 5272748 | Davis | Dec 1993 | |
| 5274693 | Waldman | Dec 1993 | |
| 5335276 | Thompson et al. | Aug 1994 | |
| 5392338 | Danish et al. | Feb 1995 | |
| 5394462 | Maemura | Feb 1995 |
| Entry |
|---|
| Charles Schwab "Schwab Telebroker Service" Brochure, Cover, Back, pp. 1, 2 & 7-14, Oct. 1993. |
| Broomfield et al., "Making A Data Terminal Out Of The Touch-Tone Telephone", Electronics, Jul. 1980. |
| Mehl, "The 76E Subset Used As A Data Terminal", Teleteknik 1979, No. 1 , pp. 34-36. |