Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6659555 | Spring unit for weight adjustment of a chair | Rolf Scholz, Frank Weisser, Armin Sander | 2003-12-09 |
| 6634716 | Office chair | Armin Sander | 2003-10-21 |
| 6513874 | Chair, especially office chair | Armin Sander | 2003-02-04 |