Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8215441 | Steering system for crane | Jerry J. Wierzba | 2012-07-10 |
| 7798274 | Steering system for crane | Jerry J. Wierzba | 2010-09-21 |
| 7520362 | Steering system for crane | Jerry J. Wierzba | 2009-04-21 |
| 7252299 | Steering system for crane | Jerry J. Wierzba | 2007-08-07 |