Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6698849 | Pneumatic pressure control device for an empty/load changeover valve on a railway car | John B. Carroll | 2004-03-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6698849 | Pneumatic pressure control device for an empty/load changeover valve on a railway car | John B. Carroll | 2004-03-02 |