In drawing
In drawing
| Number | Name | Date | Kind |
|---|---|---|---|
| D403999 | Lund | Jan 1999 | S |
| D404698 | Schenk et al. | Jan 1999 | S |
| D409541 | Sproull et al. | May 1999 | S |
| D413846 | Lund | Sep 1999 | S |
| D478303 | Iverson et al. | Aug 2003 | S |
| D525574 | Conway et al. | Jul 2006 | S |
| D528054 | Beigel et al. | Sep 2006 | S |
| D544821 | Elwell | Jun 2007 | S |
| D554571 | Elwell et al. | Nov 2007 | S |
| D556657 | Elwell et al. | Dec 2007 | S |
| D563854 | Stuart | Mar 2008 | S |
| D638337 | Francisco | May 2011 | S |