Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8540092 | Hoisting crane with annular bearing structure | Joop Roodenburg, Adriaan Jan Rodenburg | 2013-09-24 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8540092 | Hoisting crane with annular bearing structure | Joop Roodenburg, Adriaan Jan Rodenburg | 2013-09-24 |