The broken lines showing the barrel of a pen illustrate environmental matter, and the circle drawn in broken lines in
The broken lines showing the barrel of a pen illustrate environmental matter, and the circle drawn in broken lines in
| Number | Name | Date | Kind |
|---|---|---|---|
| D88821 | Platt et al. | Dec 1932 | S |
| D302700 | Grossiord | Aug 1989 | S |
| D312478 | Lecce | Nov 1990 | S |
| D322093 | Eylers | Dec 1991 | S |
| D361783 | Wei | Aug 1995 | S |
| 5927881 | Yang | Jul 1999 | A |
| D522580 | Shibata | Jun 2006 | S |
| D566175 | Qiu et al. | Apr 2008 | S |
| D569910 | Cetera | May 2008 | S |
| Number | Date | Country | |
|---|---|---|---|
| Parent | 29296335 | Oct 2007 | US |
| Child | 29299367 | US |