Patent US 3355620A
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| Patent number | US 3355620A (click link for details and documents via Google Patents) |
|---|---|
| Title | Pulse counter tube employing voltage feedback from target to beam deflection electrodes isolated from any d. c. reference voltage |
| Inventors | Dick Ropiequet |
| Company | Tektronix Inc |
| Filing date | 1963-12-02 |
| Grant date | 1967-11-28 |