Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5936821 | Overvoltage protection plug with fail-safe device having optional visual fail-fail signal indicator | Ralf-Dieter Busse, Joachim Stark | 1999-08-10 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5936821 | Overvoltage protection plug with fail-safe device having optional visual fail-fail signal indicator | Ralf-Dieter Busse, Joachim Stark | 1999-08-10 |