Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6202243 | Surface cleaning machine with multiple control positions | Kevin L. Shinler | 2001-03-20 |
| 5254146 | Means for emptying a filter box | — | 1993-10-19 |
| 5013333 | Unattended air cleaning system for surface maintenance machine | Robert Aigner, Steven A. Burke | 1991-05-07 |