Number | Name | Date | Kind |
---|---|---|---|
4644351 | Zabarsky et al. | Feb 1987 | |
5029196 | Morganstein | Jul 1991 | |
5090050 | Heffernan | Feb 1992 | |
5109405 | Morganstein | Apr 1992 | |
5311570 | Grimes et al. | May 1994 | |
5327486 | Wolff et al. | Jul 1994 | |
5329578 | Brennan et al. | Jul 1994 | |
5353331 | Emery et al. | Oct 1994 | |
5467390 | Brankley et al. | Nov 1995 | |
5479411 | Klein | Dec 1995 | |
5479472 | Campana, Jr. et al. | Dec 1995 | |
5559860 | Mizikovsky | Sep 1996 |
Number | Date | Country |
---|---|---|
2193861 | Aug 1987 | GBX |
Entry |
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Hientz et al., A Short Message Service--A New Service of Digital Mobile Communication, pp. 517-526, Sep. 1993. |