Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4590771 | Control system for defrosting the outdoor coil of a heat pump | Jacob E. Shaffer, Jr., James R. Harnish | 1986-05-27 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4590771 | Control system for defrosting the outdoor coil of a heat pump | Jacob E. Shaffer, Jr., James R. Harnish | 1986-05-27 |