Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4683678 | Adjustable railway boxcar door | Ralph E. Cummings | 1987-08-04 |
| 4439076 | Movable freight restraining device for freight cars and the like | Russell M. Loomis, Michael D. Gaikowski | 1984-03-27 |