Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4412199 | Regulating winding connected in series with a main winding of a transformer | — | 1983-10-25 |
| 4277770 | Regulating winding structure for transformer | Gunnar Jorendal | 1981-07-07 |