Number | Name | Date | Kind |
---|---|---|---|
3979719 | Tooley et al. | Sep 1976 | |
4385384 | Rosbury et al. | May 1983 | |
4393501 | Kellogg et al. | Jul 1983 | |
4429382 | Greenstein et al. | Jan 1984 | |
4549297 | Nishimoto | Oct 1985 | |
4665521 | Smith | May 1987 | |
4700358 | Duncanson et al. | Oct 1987 | |
4715044 | Gartner | Dec 1987 |
Entry |
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The publication All about Modems and Related Topics by John A. Jurenko, Publication No. 7, Oct. 1981, pp. 245-249. |
The manual for the "LineMaster" manufactured by Microframe, Inc., pp. 1-12. |