Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4429620 | Hydraulically operated actuator | Joseph A. Burkhardt, Thomas W. Childers, Harry R. Hanson | 1984-02-07 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4429620 | Hydraulically operated actuator | Joseph A. Burkhardt, Thomas W. Childers, Harry R. Hanson | 1984-02-07 |