| Number | Name | Date | Kind |
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| 5341414 | Popke | Aug 1994 | |
| 5444450 | Olds et al. | Aug 1995 | |
| 5528248 | Steiner et al. | Jun 1996 | |
| 5546445 | Dennison et al. | Aug 1996 | |
| 5635940 | Hickman et al. | Jun 1997 | |
| 5646839 | Katz | Jul 1997 | |
| 5832072 | Rozenblit | Nov 1998 | |
| 5848373 | DeLorme et al. | Dec 1998 |
| Number | Date | Country |
|---|---|---|
| 0 731 621 A2 | Sep 1996 | EPX |
| 0 745 867 A1 | Dec 1996 | EPX |
| 0 801 342 A2 | Oct 1997 | EPX |
| 06291868 | Oct 1994 | JPX |
| Entry |
|---|
| "Simon, Mobile Communications Made Simple", BellSouth, pp. 1-17, 1993. |