Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4460186 | Guide wheel suspension for a three wheel sweeper | Mario Jesus Martinez | 1984-07-17 |
| 4343060 | Hydraulic control system for a street sweeper | Ernest F. Prescott | 1982-08-10 |
| 4236756 | Street sweeper having an elevating hopper with supporting outriggers | Ernest F. Prescott | 1980-12-02 |
| 4222141 | Street sweeper and main broom suspension | Gerald N. Kieft | 1980-09-16 |