Issued Patents 2003
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6623057 | Uni-directional lockout for railroad car wheelset differential | Robert E. Hord | 2003-09-23 |
| 6598920 | Differential action railroad car wheelset | Robert E. Hord | 2003-07-29 |