Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4964754 | Concrete screeding machine | John M. Hinnant | 1990-10-23 |
| 4913584 | Concrete screeding machine | John M. Hinnant | 1990-04-03 |
| 4747726 | Concrete screeding machine | John M. Hinnant | 1988-05-31 |