Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6939147 | Junction box and soldering method for printed circuit board of the junction box | Cheol-Seob Lee, Yang Youn Choi | 2005-09-06 |
| 6939402 | Cement admixture having superior water-reducing properties and method for preparing the same | Byeong-Gil Choi, Dong-Kyu Kang, Kwang-Myung Park, Chan Young Lee, Hee Song +3 more | 2005-09-06 |