Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7249523 | Apparatus and method for measuring mechanical properties | — | 2007-07-31 |
| 4754476 | Premises page/intercom system utilizing telephone set component | Harry R. Rasmussen, Dan M. Percival | 1988-06-28 |
| 4653094 | Telephone set line status display | Harry R. Rasmussen, Dan M. Percival, John D. Hoskinson | 1987-03-24 |