Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4852338 | Debris collector frame and assembly | Peter Knoell | 1989-08-01 |
| 4846588 | Debris collector bag | Frank R. Allen | 1989-07-11 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4852338 | Debris collector frame and assembly | Peter Knoell | 1989-08-01 |
| 4846588 | Debris collector bag | Frank R. Allen | 1989-07-11 |