Number | Name | Date | Kind |
---|---|---|---|
2657354 | Van Sickle | Oct 1953 | |
3424958 | Groat | Jan 1969 | |
3852660 | Maier | Dec 1974 | |
3924160 | Maier | Dec 1975 | |
3930187 | Misencik | Dec 1975 | |
4105965 | Russell | Aug 1975 |
Entry |
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Saturating Core Devices-Operating Principles and Applications by Leonard R. Crow, May 8, 1950, pp. 98-107. |