Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9074325 | Portable temporary turnout system for rails | Eric John Gehringer | 2015-07-07 |
| 6055693 | Railway short span trestle bridge | Bradley R. Lehr, Jerry Martin, Mark L. McCune | 2000-05-02 |