Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6412795 | Assembly of nestable wheelchairs and wheelchair for use in such an assembly | Stephanus Theodorus Anthonius Gertrudes Beumer | 2002-07-02 |
| 6161848 | Assembly of nestable wheelchairs and wheelchair for use in such an assembly | Stephanus Theodorus Anthonius Gertrudes Beumer | 2000-12-19 |
| 5181762 | Biomechanical body support with tilting leg rest tilting seat and tilting and lowering backrest | — | 1993-01-26 |
| 5167168 | Driving gear for a muscle power driven vehicle, such as a wheel chair | — | 1992-12-01 |