Issued Patents 1989
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4827397 | Microcomputer-based spark ignition gas burner control system | Robert W. Haul | 1989-05-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4827397 | Microcomputer-based spark ignition gas burner control system | Robert W. Haul | 1989-05-02 |