Number | Name | Date | Kind |
---|---|---|---|
4951044 | Nelson et al. | Aug 1990 | |
5293250 | Okumura et al. | Mar 1994 | |
5377354 | Scannell et al. | Dec 1994 | |
5487100 | Kane | Jan 1996 | |
5557723 | Holt et al. | Sep 1996 | |
5561703 | Arledge et al. | Oct 1996 | |
5604788 | Tett | Feb 1997 | |
5632018 | Otorii | May 1997 |
Entry |
---|
Paul Hurly et al, The Videotex and Teletext Handbook, pp. 216-218 & 388, .COPYRGT. 1985. |