Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4204513 | Hydraulic safety mechanism | Robert A. Bilbrey, David G. Powell | 1980-05-27 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4204513 | Hydraulic safety mechanism | Robert A. Bilbrey, David G. Powell | 1980-05-27 |