Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5072914 | Railway freight car coupler lift | Jimmie R. Thrift | 1991-12-17 |
| 5050751 | Railway freight car combination coupler knuckle hanger and knuckle pin holder | Jimmie R. Thrift | 1991-09-24 |