Patent US 3843873A
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| Patent number | US 3843873A (click link for details and documents via Google Patents) |
|---|---|
| Title | Counter having selective direction and variable rate control |
| Inventors | Bob Beville, Bruce Hofer, Bill Peek |
| Company | Tektronix Inc |
| Filing date | 1972-09-19 |
| Grant date | 1974-10-22 |