Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5689253 | Ergonomic keyboard apparatus | Shirley A. Lunde | 1997-11-18 |
| 5673040 | Ergonomic keyboard apparatus | Shirley A. Lunde, William P. Farrand | 1997-09-30 |
| 5610602 | Keyboard and method for producing | — | 1997-03-11 |