Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6659555 | Spring unit for weight adjustment of a chair | Frank Weisser, Armin Sander, Martin Potrykus | 2003-12-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6659555 | Spring unit for weight adjustment of a chair | Frank Weisser, Armin Sander, Martin Potrykus | 2003-12-09 |