Number | Name | Date | Kind |
---|---|---|---|
4001557 | Stephenson | Jan 1977 | |
4064394 | Allen | Dec 1977 | |
4178634 | Bartlett | Dec 1979 | |
4200916 | Seipp | Apr 1980 | |
4215398 | Burkett et al. | Jul 1980 | |
4344127 | McDaniel et al. | Aug 1982 |
Number | Date | Country |
---|---|---|
2041572 | Sep 1980 | GBX |
WO8000383 | Mar 1980 | WOX |
Entry |
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J. Gallacher, Industrial Data Acquisition and Control Systems, Jun., 1979, vol. 3, No. 5, Microprocessors and Microsystems, pp. 210-218. |