Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5642430 | Visual presentation system which determines length of time to present each slide or transparency | William F. Phillips | 1997-06-24 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5642430 | Visual presentation system which determines length of time to present each slide or transparency | William F. Phillips | 1997-06-24 |