Issued Patents 1982
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4338791 | Microcomputer control for heat pump system | Rollie R. Herzog | 1982-07-13 |
| 4333316 | Automatic control apparatus for a heat pump system | Rollie R. Herzog | 1982-06-08 |
| 4328680 | Heat pump defrost control apparatus | Rollie R. Herzog | 1982-05-11 |