Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4542604 | Apparatus for storing a plurality of signs and automatically displaying said signs at predetermined timed intervals | Robert E. Uihlein | 1985-09-24 |
| 4407084 | Apparatus for storing a plurality of signs and automatically displaying said signs at predetermined timed intervals | Robert E. Uihlein | 1983-10-04 |