Number | Date | Country | Kind |
---|---|---|---|
52-27827 | Mar 1977 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3427514 | Olmstead et al. | Feb 1969 | |
3657560 | Proebsting | Apr 1972 | |
3808472 | Engeler | Apr 1974 | |
4141027 | Baldwin et al. | Feb 1979 |
Number | Date | Country |
---|---|---|
2006333 | Aug 1971 | DEX |
2145386 | Mar 1972 | DEX |
1566228 | Sep 1969 | FRX |
Entry |
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Eaton, S. S. "Sapphire Brings Out the Best in C-Mos", Electronics, Jun. 1975, pp. 115-118. |
Benz, H. F. et al, "A Linear Voltage-Tunable Distributed Null Device", IEEE Journal of Solid-State Circuits, Dec. 1972, pp. 499-503. |