Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5979501 | Fluid distributing apparatus for piston-type hydraulic motors or pumps | Dong-Soo Jung, Yong Bum Lee | 1999-11-09 |
| 5765590 | Opposite way pressure detecting type shuttle relief valve | Yoong-Beom Lee | 1998-06-16 |