Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6109532 | Locomotive cab heating system | Marc A. Richard, Donald E. Graham | 2000-08-29 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6109532 | Locomotive cab heating system | Marc A. Richard, Donald E. Graham | 2000-08-29 |