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4258418 | Heath | Mar 1981 | |
4692893 | Casper | Sep 1987 | |
4803654 | Rasberry et al. | Feb 1989 | |
4835774 | Ooshima et al. | May 1989 | |
5471488 | Bender | Nov 1995 | |
5633878 | Ernkell et al. | May 1997 |
Entry |
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Access I/O Products, Inc., WDG-CSM Watchdog and Computer System Monitor Card, published at http://www.acces-usa.com/wdgcsm.html, 1997, 3 pages. |
OutSource Engineering & Manufacturing, Watchdog Cards . . . Product Descriptions and Prices, published at http://www.indim.com/.about.outsrc/watchdogs.html, 1997, 3 pages. |