Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5351568 | Rotary speed changing apparatus | — | 1994-10-04 |
| 5184715 | Mechanical drive for dual conveyor system | — | 1993-02-09 |
| 4730742 | Apparatus for lifting an elongate member | — | 1988-03-15 |
| 4712922 | Material mixing apparatus | — | 1987-12-15 |
| 4553898 | Swingably mounted truck hopper | — | 1985-11-19 |
| 4457746 | Apparatus for centrifugal separation | — | 1984-07-03 |
| 4220433 | Sweep auger drive system | — | 1980-09-02 |