Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6644741 | Chair | Manfred Kleinikel, Werner Hartel | 2003-11-11 |
| 6533355 | Height-adjustment mechanism for a chair | Michael D. Broekhuis, Richard N. Roslund, Jr., Stephen J. Simpson | 2003-03-18 |