Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5653821 | Method for manufacturing oriented electrical steel sheet by heating slab at low temperature | Chung San Lee, Jong Soo Woo, Byung-Deug Hong | 1997-08-05 |
| 5617746 | Pressure dehydration low-frequency vibration washing machine | Kyung Seop Hong, Dong Yeop Oh, Joo Hwan Lee, Oh-Hun Kwon, Ha I. Lee +1 more | 1997-04-08 |