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| Withdrawn Patents | |
| Grant Date | Patent Number | 
| 2004-12-21 | D499,970 | 
| 2004-12-21 | 6,832,476 | 
| 2004-12-21 | 6,832,530 | 
| 2004-12-21 | 6,833,189 | 
| 2004-12-21 | 6,833,684 | 
| 2004-12-21 | 6,834,051 | 
| 2004-12-21 | 6,834,140 |