Patent US 4989971A
| Patent number | US 4989971A (click link for details and documents via Google Patents) |
|---|---|
| Title | Automatic mask trigger for an optical time domain reflectometer |
| Inventors | Kevin B. McDonald |
| Company | Tektronix Inc |
| Filing date | 1989-07-14 |
| Grant date | 1991-02-05 |