The broken lines shown in
The broken lines shown in
| Number | Name | Date | Kind |
|---|---|---|---|
| 2794375 | Di Falco et al. | Jun 1957 | A |
| 3362739 | Staeger et al. | Jan 1968 | A |
| D235570 | Barton et al. | Jun 1975 | S |
| 4193584 | Wieser | Mar 1980 | A |
| 4470647 | Bishoff et al. | Sep 1984 | A |
| D298464 | Roote | Nov 1988 | S |
| 5806249 | Helms | Sep 1998 | A |
| D404146 | Perkins | Jan 1999 | S |
| 6345474 | Triplett | Feb 2002 | B1 |
| 6543969 | Adam | Apr 2003 | B1 |
| 6944998 | King | Sep 2005 | B1 |
| D641804 | Kichijo | Jul 2011 | S |
| D716879 | Norman | Nov 2014 | S |
| 8904706 | Smith | Dec 2014 | B1 |
| D759980 | Toth | Jun 2016 | S |
| D763067 | Monsees | Aug 2016 | S |
| 20010032427 | Hoffman et al. | Oct 2001 | A1 |
| 20050050823 | Whitson | Mar 2005 | A1 |
| 20080120905 | Pai | May 2008 | A1 |
| 20090001197 | Dilday | Jan 2009 | A1 |
| 20110265399 | Hahn | Nov 2011 | A1 |
| 20130081326 | Peterson | Apr 2013 | A1 |
| 20140290136 | Vaughn et al. | Oct 2014 | A1 |
| Number | Date | Country |
|---|---|---|
| 2418462 | Aug 2004 | CA |
| 2793252 | Apr 2013 | CA |
| 157888 | Mar 2015 | CA |