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4644479 | Kemper et al. | Feb 1987 | A |
4654806 | Poyser et al. | Mar 1987 | A |
5400018 | Scholl et al. | Mar 1995 | A |
5845272 | Morjaria et al. | Dec 1998 | A |
6104988 | Klarer | Aug 2000 | A |
Entry |
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Kirtley, Jr., et al. “Monitoring the Health of Power Transformers”; IEEE Computer Applications in Power (Jan. 1996) pp. 18-23. |