Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D657742 | Earthing switch | Volker Grafe | 2012-04-17 |
| 5081440 | Bus coupler | Hermann Zierhut | 1992-01-14 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D657742 | Earthing switch | Volker Grafe | 2012-04-17 |
| 5081440 | Bus coupler | Hermann Zierhut | 1992-01-14 |