Number | Date | Country | Kind |
---|---|---|---|
68628/75 | Jun 1975 | IT |
Number | Name | Date | Kind |
---|---|---|---|
3738339 | Huntzinger et al. | Jun 1973 | |
3903857 | Honig et al. | Sep 1975 | |
3919987 | Haubner et al. | Nov 1975 | |
3941100 | Bensch et al. | Mar 1976 | |
3955723 | Richards | May 1976 |
Entry |
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Frequency Doubler, Source Publication: Elektor (English), vol. 2, No. 7-8, p. 719, July-Aug. 1976, by Elektor Publishers Ltd., Canterberry, England. |