Number | Name | Date | Kind |
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4552205 | Saunders | Nov 1985 | A |
5790430 | Steiert | Aug 1998 | A |
6040668 | Huynh et al. | Mar 2000 | A |
6188189 | Blake | Feb 2001 | B1 |
Entry |
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Nillson et al, “Electric Circuits”, Fifth Edition, Addison-Wesley Publishing Company, 1996. Pp. 179-180. |