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6116349 | Wilson | Sep 2000 | A |
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D483236 | Martin et al. | Dec 2003 | S |
6742263 | Ellson et al. | Jun 2004 | B2 |
D510512 | Robson | Oct 2005 | S |
6973728 | Ellson et al. | Dec 2005 | B2 |
D556523 | Nuesink et al. | Dec 2007 | S |