Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5630647 | Tension adjustment mechanism for chairs | Kurt R. Heidmann, Brian L. Christensen, Michael W. Haan, Eric McClure, Noe Palacios +6 more | 1997-05-20 |
| 5611598 | Chair having back shell with selective stiffening | — | 1997-03-18 |