Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4789203 | Chair with movable seat and backrest | Harm Boomsma, Ronald Michiel Lewerissa, Jeroen Klaasjan Verbrugge | 1988-12-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4789203 | Chair with movable seat and backrest | Harm Boomsma, Ronald Michiel Lewerissa, Jeroen Klaasjan Verbrugge | 1988-12-06 |