Issued Patents 2004
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6782989 | Process for switching between mains supply and a frequency inverter and vice versa | Stefan Spannhake, Herbert Horbrugger | 2004-08-31 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6782989 | Process for switching between mains supply and a frequency inverter and vice versa | Stefan Spannhake, Herbert Horbrugger | 2004-08-31 |