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| D509030 | Udelhofen | Aug 2005 | S |
| D511225 | Brown et al. | Nov 2005 | S |
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| RE40159 | Udelhofen et al. | Mar 2008 | E |
| D592809 | Broersma et al. | May 2009 | S |
| D598167 | Broersma et al. | Aug 2009 | S |
| D628749 | Daniel | Dec 2010 | S |
| 20090044316 | Udelhofen | Feb 2009 | A1 |
| 20090217443 | Broersma et al. | Sep 2009 | A1 |