Number | Date | Country | Kind |
---|---|---|---|
8511865 | May 1985 | GBX |
Number | Name | Date | Kind |
---|---|---|---|
3024422 | Jansson | Mar 1962 |
Entry |
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Leitman et al., "A High Voltage DC Amplifier Stage", Instruments and Experimental Techniques, vol. 19, No. 2, Pt. 1, Mar.-Apr. 1976, pp. 443-445. |