Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5158022 | Hatch vent assembly for railroad cars with baffle and screen mesh to prevent entry of contaminants | William U. Casseau, John A. Krug | 1992-10-27 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5158022 | Hatch vent assembly for railroad cars with baffle and screen mesh to prevent entry of contaminants | William U. Casseau, John A. Krug | 1992-10-27 |