Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9640339 | On-load tap changer, method for installing a load transfer switch insert in the on-load tap changer, and kerosene drain screw | Silke Wrede, Hubert Zwirglmaier | 2017-05-02 |
| 9640341 | On-load tap changer | Silke Wrede, Dieter Dohnal, Christian Kotz | 2017-05-02 |