Issued Patents 2002
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6489605 | Device to aid the orientation of blind and partially sighted people | Maria Ritz, Ludger Woste | 2002-12-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6489605 | Device to aid the orientation of blind and partially sighted people | Maria Ritz, Ludger Woste | 2002-12-03 |