The broken line showing in 
 
                 Patent Grant
 Patent Grant
                     D918017
 D918017
                    
    
    
    
    
    
    
    
    
The broken line showing in 
| Number | Name | Date | Kind | 
|---|---|---|---|
| 3408786 | Snyker | Nov 1968 | A | 
| D339875 | Schutz | Sep 1993 | S | 
| D341667 | Schultz | Nov 1993 | S | 
| 5947322 | Ho | Sep 1999 | A | 
| 6318600 | Winnett | Nov 2001 | B1 | 
| 7287735 | Heerdt | Oct 2007 | B2 | 
| D563771 | Prechtel | Mar 2008 | S | 
| 7650948 | Rousseau | Jan 2010 | B2 | 
| D821121 | Casilio | Jun 2018 | S | 
| D830742 | Brendlinger | Oct 2018 | S | 
| 10527224 | Park | Jan 2020 | B1 | 
| D878903 | Roskamp | Mar 2020 | S |