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 |
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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. |