Number | Name | Date | Kind |
---|---|---|---|
3593008 | De Witt et al. | Jul 1971 | |
3688087 | Howard et al. | Aug 1972 | |
4323771 | Chalker, Jr. et al. | Apr 1982 | |
4737910 | Kimbrow | Apr 1988 | |
4771383 | Takahashi | Sep 1988 | |
4814592 | Bradt et al. | Mar 1989 | |
4819162 | Webb, Jr. et al. | Apr 1989 | |
5212635 | Ferriter | May 1993 | |
5294781 | Takahashi et al. | Mar 1994 | |
5382779 | Gupta | Jan 1995 | |
5434394 | Roach et al. | Jul 1995 |
Number | Date | Country |
---|---|---|
404243704 | Aug 1992 | JPX |
404243706 | Aug 1992 | JPX |
Entry |
---|
"Introducing the NCR 280 retail system", The Wall Street Journal, Sep. 17, 1970. |