Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6450728 | Paving tile for guidance of blind persons | Tamar Vanessa Grahmbeek | 2002-09-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6450728 | Paving tile for guidance of blind persons | Tamar Vanessa Grahmbeek | 2002-09-17 |