Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7977595 | Automatic discharging apparatus for closing spring in air circuit breaker and air circuit breaker having the same | Sang Chul Lee, Ki Hwan Kim, Kil Young Ahn | 2011-07-12 |
| 7973622 | Apparatus for auxiliary contact of circuit breaker | Sang Chul Lee, Kil Young Ahn | 2011-07-05 |