Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6668210 | Vending machine for engraved medals and a method of automatically engraving medals | Chang Ho Sung | 2003-12-23 |
| 5293183 | Heat blowing equipment of thermal print head for color video printer | — | 1994-03-08 |
| 5272488 | Press device for printing head | — | 1993-12-21 |