Issued Patents 2003
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6604469 | Apparatus for controlling operation of railroad hopper car discharge doors | Robert T. Fischer | 2003-08-12 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6604469 | Apparatus for controlling operation of railroad hopper car discharge doors | Robert T. Fischer | 2003-08-12 |