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| Number | Date | Country | |
|---|---|---|---|
| Parent | 13420396 | Mar 2012 | US |
| Child | 29425272 | US | |
| Parent | 29415817 | Mar 2012 | US |
| Child | 13420396 | US | |
| Parent | 13314345 | Dec 2011 | US |
| Child | 29415817 | US |