Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4248557 | Railway car counter balanced tilting deck | David J. Roldness, Thomas H. Watson | 1981-02-03 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4248557 | Railway car counter balanced tilting deck | David J. Roldness, Thomas H. Watson | 1981-02-03 |