| Number | Name | Date | Kind |
|---|---|---|---|
| 928007 | Thompson | Jul 1909 | A |
| 1656032 | Birkholtz | Jan 1928 | A |
| 2446525 | Castellan | Aug 1948 | A |
| D240192 | Balmar | Jun 1976 | S |
| 4903911 | Sepka | Feb 1990 | A |
| D341770 | Spear et al. | Nov 1993 | S |
| D436520 | Bulman | Jan 2001 | S |
| 6715710 | Russell et al. | Apr 2004 | B1 |
| D491048 | Cornier et al. | Jun 2004 | S |
| 6991197 | Cox et al. | Jan 2006 | B2 |
| D545561 | Vandecasteele | Jul 2007 | S |
| D557118 | Linginfelter | Dec 2007 | S |
| Entry |
|---|
| http://www.youtube.com/watch?v=6QVW9KIVY3U. |
| http://www.azooptics.com/news.aspx?NewsID=15086. |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 13918446 | Jun 2013 | US |
| Child | 29465268 | US | |
| Parent | 13291916 | Nov 2011 | US |
| Child | 13918446 | US | |
| Parent | 12364485 | Feb 2009 | US |
| Child | 13291916 | US |