Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4457036 | Debris collecting mechanism | Donald J. Haub, Mark Snetting | 1984-07-03 |
| D273621 | Combination sweeper-scrubber floor machine | Donald J. Haub | 1984-04-24 |
| 4377017 | Scrubbing machine with water regeneration | Ferdinand J. Herpers, Harley E. Kroll, Paul D. Dodge | 1983-03-22 |
| 4295244 | Scrubbing machine with water regeneration | Ferdinand J. Herpers, Harley E. Kroll, Paul D. Dodge | 1981-10-20 |
| 4194263 | Scrubbing machine with water regeneration | Ferdinand J. Herpers, Harley E. Kroll, Paul D. Dodge | 1980-03-25 |