Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4718725 | Support-and adjusting device for seat and backrest on a work chair | Bernd Weinberger | 1988-01-12 |
| 4695093 | Work chair | Bernd Weinberger | 1987-09-22 |
| 4660885 | Adjusting mechanism for the step-wise locking height adjustment of backrest of work chair | Bernd Weinberger | 1987-04-28 |
| 4509793 | Chair | Herbert L. Wiesmann | 1985-04-09 |