Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4411469 | Chair, particularly a data display chair | Oskar Posch, Hans J. Edel, Bernhard Schroeder | 1983-10-25 |
| 4406496 | Backrest for chairs | Ulrich H. von Waldegge | 1983-09-27 |
| D270020 | Upholstered chair | — | 1983-08-09 |
| 4362335 | Adjustable chair backrest mechanism using pneumatic and mechanical springs | Ulrich H. von Waldegge | 1982-12-07 |