Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4462795 | Method of operating a wall fired duct heater | Ralph R. Vosper, Chester S. Binasik, Norman E. Harthun | 1984-07-31 |
| 4375952 | Wall fired duct heater | Ralph R. Vosper, Chester S. Binasik, Norman E. Harthun | 1983-03-08 |
| 4286945 | Wall fired duct heater | Ralph R. Vosper, Chester S. Binasik, Norman E. Harthun | 1981-09-01 |