Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4910492 | Electric laminar resistor and method of making same | Per G. Zacho | 1990-03-20 |
| 4853671 | Electric laminar resistor and method of making same | Per G. Zacho | 1989-08-01 |
| 4585165 | Means for setting the switching on and off periods of a burner of a hot water heating installation | — | 1986-04-29 |
| 4412581 | Heating installation comprising a boiler and a heat pump | Henning Max Hansen | 1983-11-01 |