Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5052135 | Convertible grass cutting and snow blowing machine having a cylindrical rotor | — | 1991-10-01 |
| 4996928 | Integrated chassis and suspension systems for monorail vehicles | Jan Janssen | 1991-03-05 |