Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5845584 | Rail car bridge plate | Robert L. Bullock | 1998-12-08 |
| 5596936 | Rail car bridge plate | Robert L. Bullock | 1997-01-28 |
| 5535681 | Telescopic bridge plate assembly | John T. Sarnicki | 1996-07-16 |
| 5515792 | Rail car bridge plate | Robert L. Bullock, Dallas S. Drew, Michael C. Burkitt | 1996-05-14 |