Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9808871 | Cutting insert | Byung-sun Choi, Sun-Kyoo Lee, Dong-Ryong Ji, Dong-Bok Park | 2017-11-07 |
| 9623496 | Insert for slot milling | Jung Woo Lee, Byung-sun Choi, Dong-Ryong Ji, Dong-Bok Park | 2017-04-18 |