The difference in shading in
The difference in shading in
| Number | Name | Date | Kind |
|---|---|---|---|
| D58409 | Sturm | Jul 1921 | S |
| D91604 | Conner | Feb 1934 | S |
| D148392 | Sabol | Jan 1948 | S |
| D184833 | Sager | Apr 1959 | S |
| D262199 | Bogner | Dec 1981 | S |
| 4918758 | Rendina | Apr 1990 | A |
| 6701532 | Glassberg | Mar 2004 | B1 |
| D489023 | Steiner | Apr 2004 | S |
| 7216508 | Kretchmer | May 2007 | B2 |
| D575827 | Tanaka | Aug 2008 | S |
| D583418 | Tanaka | Dec 2008 | S |
| D664839 | Bonhag | Aug 2012 | S |
| Entry |
|---|
| [Online] “Men's Thin Blue Line Ring” https://qalo.com/collections/qalo-mens-silicone-rings/products/qalo-mens-thin-blue-line-silicone-ring?variant=1201643952. Retrieved Mar. 30, 2017. |