Number | Name | Date | Kind |
---|---|---|---|
3676789 | Bray | Jul 1972 | |
4051519 | Harwood | Sep 1977 |
Entry |
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Davis, Industrial Electronics: Design and Application, published 1973 by Bell and Howell Co., p. 207. |
Millman et al., Integrated Electronics: Analog and Digital Circuits and Systems, published 1972 by McGraw-Hill Co., p. 515. |