Patent US 4097798A
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| Patent number | US 4097798A |
|---|---|
| Title | Oscilloscope sweep rate indicator system |
| Inventors | David Harmon Olson, Eldon Carl Berg |
| Company | Tektronix Inc |
| Filing date | 1977-02-28 |
| Grant date | 1978-06-27 |
| Cites |