Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6115237 | Electrical equipment case | David J. Zahorsky, Allan D. Zamparelli, Arthur R. Troup, Charles S. Hall | 2000-09-05 |
| 5963631 | Wayside communications safety system | Charles S. Hall | 1999-10-05 |
| 5956228 | Electrical equipment case | David J. Zahorsky, Allan D. Zamparelli, Arthur R. Troup, Charles S. Hall | 1999-09-21 |