Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4779558 | Image permanence device | Edward R. Gabel, William J. Hanson, Mary B. Burke | 1988-10-25 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4779558 | Image permanence device | Edward R. Gabel, William J. Hanson, Mary B. Burke | 1988-10-25 |