Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4859100 | Keyboard to prevent erroneous simultaneous activation of keys | Vincent Carlson, Michael N. Fenlon, Ronald H. Kadomiya | 1989-08-22 |
| 4845437 | Synchronous clock frequency conversion circuit | Imtiaz I. Piracha | 1989-07-04 |