Patent US 4500809A
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| Patent number | US 4500809A |
|---|---|
| Title | Electron gun having a low capacitance cathode and grid assembly |
| Inventors | Conrad Odenthal, Dennis D. Askew |
| Company | Tektronix Inc |
| Filing date | 1982-09-13 |
| Grant date | 1985-02-19 |
| Cites |