Number | Name | Date | Kind |
---|---|---|---|
3559108 | Seidel | Jan 1971 | |
4216445 | Abajian | Aug 1980 | |
4492960 | Hislop | Jan 1985 | |
4559489 | Vacanti et al. | Dec 1985 | |
4902983 | Fujiki et al. | Feb 1990 |
Number | Date | Country |
---|---|---|
58109 | Mar 1989 | JPX |
Entry |
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Voltage-Controlled Attenuator with Low Phase Shift, NASA Tech Briefs, vol. 4, No. 3, Fall 1979, p. 326. |