Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5417165 | Self-clearing discharge door assembly for railroad ballast hopper car | James S. Bell | 1995-05-23 |
| 5284097 | Ballast distribution, regulation and reclaiming railroad maintenance device | Robert G. Vieau, James S. Bell | 1994-02-08 |