Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4919383 | Rotating display | Olivier Benjamin, Robert P. Franklin | 1990-04-24 |
| 4813553 | Modular display kit | Robert P. Franklin | 1989-03-21 |
| 4796763 | Modular display | Robert P. Franklin | 1989-01-10 |
| 4660309 | Changeable character display device | — | 1987-04-28 |