Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4848611 | Railroad car coupler arrangement limiting excess lateral movement of the coupler shank | Ronald P. Sellberg | 1989-07-18 |
| 4817535 | Stand alone well car with double axle suspension system | — | 1989-04-04 |