The surface shading and broken lines shown in 
                
    
    
    
    
    
    
    
    
    
    
    
    
    
    
The surface shading and broken lines shown in 
| Number | Name | Date | Kind | 
|---|---|---|---|
| 4480845 | Hansen | Nov 1984 | A | 
| D433425 | Surridge et al. | Nov 2000 | S | 
| D435503 | Gukeisen et al. | Dec 2000 | S | 
| D441710 | Moehle et al. | May 2001 | S | 
| D484893 | Hsiao | Jan 2004 | S | 
| D488757 | Gough | Apr 2004 | S | 
| D537450 | Fretwell | Feb 2007 | S | 
| D551153 | Oury | Sep 2007 | S | 
| D556094 | May | Nov 2007 | S | 
| D556214 | Fretwell | Nov 2007 | S | 
| D643796 | Heinemann et al. | Aug 2011 | S | 
| D644160 | Fries et al. | Aug 2011 | S | 
| D644161 | Fries et al. | Aug 2011 | S | 
| D647166 | Kimball et al. | Oct 2011 | S | 
| D655372 | Kimball et al. | Mar 2012 | S | 
| D663325 | Thunstrom et al. | Jul 2012 | S | 
| D669099 | Ringer et al. | Oct 2012 | S | 
| D669100 | Ringer et al. | Oct 2012 | S | 
| D673587 | Truan et al. | Jan 2013 | S |