Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4265182 | Damping railway car truck | David P. Hillstead | 1981-05-05 |
| 4242966 | Railway car truck transom including a tubular bearing assembly | Jan D. Holt | 1981-01-06 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4265182 | Damping railway car truck | David P. Hillstead | 1981-05-05 |
| 4242966 | Railway car truck transom including a tubular bearing assembly | Jan D. Holt | 1981-01-06 |