Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7281624 | Air supported impact section for air supported belt conveyors | Hendrik Hartsuiker, Jr. | 2007-10-16 |
| 4799584 | Drive mechanism for bucket elevators | Dorcel Warren Knapp | 1989-01-24 |