Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5684272 | In-line cord ground fault circuit interrupter | Paul Gernhardt, Serge Krzyzanowski | 1997-11-04 |
| 5680287 | In-line cord ground fault circuit interrupter | Paul Gernhardt, Serge Krzyzanowski | 1997-10-21 |