Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5803740 | Learning and assessment aid for a severely visually impaired individual | David Guth, Bernard Fehr | 1998-09-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5803740 | Learning and assessment aid for a severely visually impaired individual | David Guth, Bernard Fehr | 1998-09-08 |