Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D381480 | Debris collection hopper | Roger D. Linville | 1997-07-22 |
| 5596788 | Vacuum sweeper vehicle with lightweight hopper | Roger D. Linville | 1997-01-28 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D381480 | Debris collection hopper | Roger D. Linville | 1997-07-22 |
| 5596788 | Vacuum sweeper vehicle with lightweight hopper | Roger D. Linville | 1997-01-28 |