Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5630247 | Leaf collection box with dust recirculation | — | 1997-05-20 |
| 5181294 | Support and manipulation mechanism for leaf and debris collector | Richard John Campbell, George Gregory Miller | 1993-01-26 |