Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4768311 | Floor preparation machine and method | — | 1988-09-06 |
| 4624026 | Surface maintenance machine with rotary lip | Donald L. Thomsen, III | 1986-11-25 |
| 4393538 | Scrubber with foam and spray suppressor | — | 1983-07-19 |