Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5548860 | Ultra-speed conversion means for floor treating machines | Paul T. Grossman | 1996-08-27 |
| 5416943 | High speed conversion means for floor treating machines | Paul T. Grossman | 1995-05-23 |