Number | Name | Date | Kind |
---|---|---|---|
3683165 | Grobert et al. | Aug 1972 | |
4470126 | Haque | Sep 1984 | |
4616334 | Vogelsong et al. | Oct 1986 | |
4833639 | Keate | May 1989 |
Entry |
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Dorf, "The Electrical Engineering Handbook", CRC Press, 1993, pp. 1861-1865. |
Iwai, "A Guide to Logical Circuit", Tokyo Denki Digaku, 1980, pp. 144-146 (Section 8.4). |