Patent US 4097798A
| Patent number | US 4097798A (click link for details and documents via Google Patents) |
|---|---|
| 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 |