Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7840327 | Drive assistance device for a wheel chair and a wheel chair having a drive assistance device | Paul-Gerhard Bitzer | 2010-11-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7840327 | Drive assistance device for a wheel chair and a wheel chair having a drive assistance device | Paul-Gerhard Bitzer | 2010-11-23 |