Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4202649 | Front plate for trench boxes | John B. Cook | 1980-05-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4202649 | Front plate for trench boxes | John B. Cook | 1980-05-13 |