Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4961387 | Universally adaptable, hinged hatch cover system for railroad hopper cars | Ken L. Kneebone | 1990-10-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4961387 | Universally adaptable, hinged hatch cover system for railroad hopper cars | Ken L. Kneebone | 1990-10-09 |