Patent US 4612658A
| Patent number | US 4612658A (click link for details and documents via Google Patents) |
|---|---|
| Title | Programmable ripple counter having exclusive OR gates |
| Inventors | David H. Eby |
| Company | Tektronix Inc |
| Filing date | 1984-02-29 |
| Grant date | 1986-09-16 |