Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5683139 | Chair seat tilt adjustment and locking mechanism | Donald A. Wimmer | 1997-11-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5683139 | Chair seat tilt adjustment and locking mechanism | Donald A. Wimmer | 1997-11-04 |