Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5497573 | Thermally-protected display with a ventilation system | Robert Charles Stadjuhar | 1996-03-12 |
| 4680883 | Scroll module and sign system for internally illuminated signs | Robert Charles Stadjuhar | 1987-07-21 |
| 4496945 | Method and apparatus for symbol display device | Robert Charles Stadjuhar | 1985-01-29 |