Patent US 4564804A
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| Patent number | US 4564804A (click link for details and documents via Google Patents) |
|---|---|
| Title | Method and apparatus for automatically detecting signal levels |
| Inventors | William G. Wilke, Michael G. Reiney |
| Company | Tektronix Inc |
| Filing date | 1981-06-08 |
| Grant date | 1986-01-14 |