Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4493586 | Rip-rap laying machine and method of laying rip-rap | Samuel W. Chambers, Mathias F. Rice | 1985-01-15 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4493586 | Rip-rap laying machine and method of laying rip-rap | Samuel W. Chambers, Mathias F. Rice | 1985-01-15 |