Park; Chang-Do
Patent Applications and Registrations
Patent applications and USPTO patent grants for Park; Chang-Do.The latest application filed is for "dust and dirt collecting unit for vacuum cleaner".
- Park; Chang-Do - Changwon KR
- Park, Chang-Do - Changwon City KR
| Patent | Date |
|---|---|
| Dust and dirt collecting unit for vacuum cleaner Grant 7,160,346 - Park January 9, 2 | 2007-01-09 |
| Suction nozzle for vacuum cleaner Grant 7,051,401 - Park May 30, 2 | 2006-05-30 |
| Dust and dirt collecting unit for vacuum cleaner App 20040093684 - Park, Chang-Do | 2004-05-20 |
| Suction nozzle for vacuum cleaner App 20040078922 - Park, Chang-Do | 2004-04-29 |
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