Number | Name | Date | Kind |
---|---|---|---|
5153904 | Coombes et al. | Oct 1992 | |
5157719 | Waldman | Oct 1992 | |
5274693 | Waldman | Dec 1993 | |
5545027 | Kennedy et al. | Aug 1996 |
Number | Date | Country |
---|---|---|
WO 9501693 | Jan 1995 | WOX |
WO 9506381 | Mar 1995 | WOX |
Entry |
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Mouly M. Et al.; "The GSM System for Mobile Communications" Jan. 1, 1993, Lassay-les-Chateaux, XP002038196. |