Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4265394 | Flue damper control system | — | 1981-05-05 |
| 4205783 | Independent biasing means for automatic flue damper | Robert J. Dietsche | 1980-06-03 |
| 4185770 | Automatic flue damper control system | — | 1980-01-29 |