Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D268919 | Train hopper cover | James R. Saylor, Orville E. Blume | 1983-05-10 |
| 4378742 | Hold down bar for hopper car hatch covers | James R. Saylor, Orville E. Blume | 1983-04-05 |
| 4368674 | Hatch cover for railroad hopper cars | James R. Saylor, Orville E. Blume | 1983-01-18 |