Number | Name | Date | Kind |
---|---|---|---|
3233180 | Eddy | Feb 1966 | |
3327226 | Nourney | Jun 1967 | |
3441342 | Ball et al. | Apr 1969 | |
3798556 | Voya et al. | Mar 1974 | |
3805153 | Gallant | Apr 1974 |
Entry |
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Shiro Doi et al., Journal OHM for Jun. 1983, "Uninterruptible Power Supply (CVCF) System and Influence Countermeasure", pp. 20-23. |