Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6618888 | Dual downforce mechanism for a cleaning head of a surface conditioning vehicle | Daniel L. Joynt | 2003-09-16 |
| 4557739 | Sweeper with precleaner and/or demister | Mark D. Kinter | 1985-12-10 |