Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5684272 | In-line cord ground fault circuit interrupter | David Chan, Serge Krzyzanowski | 1997-11-04 |
| 5680287 | In-line cord ground fault circuit interrupter | David Chan, Serge Krzyzanowski | 1997-10-21 |
| 5647479 | Electrical rocker switch | Serge Krzyzanowski | 1997-07-15 |