Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4934877 | Pneumatic gate for railway hopper cars | Wallace F. Haverick | 1990-06-19 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4934877 | Pneumatic gate for railway hopper cars | Wallace F. Haverick | 1990-06-19 |