Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D290193 | Chair | Raoul J. P. Schoumaker, Shoichi Kurokawa | 1987-06-09 |
| D288097 | Keyboard support | Raoul J. P. Schoumaker | 1987-02-03 |
| 4601146 | Post cover for space dividing wall panel system | Raoul J. P. Schoumaker | 1986-07-22 |
| 4546889 | Universal telescopic stretcher rail system | Raoul J. P. Schoumaker | 1985-10-15 |