Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5170576 | Cutting wheel arrangement for suction dredge | Siegfried Steinkuhler | 1992-12-15 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5170576 | Cutting wheel arrangement for suction dredge | Siegfried Steinkuhler | 1992-12-15 |