Number | Date | Country | Kind |
---|---|---|---|
10-80318 | Mar 1998 | JPX |
Number | Name | Date | Kind |
---|---|---|---|
3619713 | Biega et al. | Nov 1971 | |
4051445 | Boschert | Sep 1977 | |
5841241 | Nilssen | Nov 1998 |
Entry |
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"A Variable Frequency Magnetic-Coupled Multivibrator", by R.L. Van Allen, AIEE Trans. (Commun. and Elect.), 74, Pt1, 1955, pp. 356-361. |