Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5852979 | Free trolley for power and free conveyors | Raymond L. Carlson, Steven J. Dale | 1998-12-29 |
| 5842421 | Power and free conveyor system utilizing power track and dog elevation to prevent jamming conditions at transfers and switches | Raymond L. Carlson, Steven J. Dale | 1998-12-01 |