Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4690129 | Terminal unit for a balanced flue | — | 1987-09-01 |
| 4431132 | Control valve systems for gas water heaters | Michael J. Edmundson, Leslie G. Hammond | 1984-02-14 |
| D264871 | Gas burner | — | 1982-06-08 |
| 4222526 | Gas burner | — | 1980-09-16 |