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| 20070012219 | Williams | Jan 2007 | A1 |
| 20070167301 | Evans | Jul 2007 | A1 |
| 20070238578 | Landfair | Oct 2007 | A1 |
| 20090023563 | Liang | Jan 2009 | A1 |
| 20090163329 | Pearce | Jun 2009 | A1 |
| 20100004105 | Peddar | Jan 2010 | A1 |
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| Number | Date | Country |
|---|---|---|
| 2451844 | Feb 2009 | GB |
| 3020220000217 | Mar 2022 | KR |
| Entry |
|---|
| 8-in × 8-in × 16-in Standard Cored Concrete Block, first available May 28, 2012, lowes.com [online], site visited [Mar. 28, 2022], Available from internet URL: https://low.es/3tNnfmf (Year: 2012). |