Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4728029 | Flameless heater for operator's cab | Francis J. Griebel | 1988-03-01 |
| 4653654 | Hydraulic crane aerial platform attachment | Kenneth D. McDaniel, Jr., Francis J. Griebel | 1987-03-31 |
| 4537281 | Two person aerial platform | Kenneth D. McDaniel, Jr., Francis J. Griebel | 1985-08-27 |