Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4348687 | Clamping assembly for thyristor column | Roman Keller | 1982-09-07 |
| 4184199 | Heavy duty rectifier | Nils Bardahl | 1980-01-15 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4348687 | Clamping assembly for thyristor column | Roman Keller | 1982-09-07 |
| 4184199 | Heavy duty rectifier | Nils Bardahl | 1980-01-15 |