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Number | Date | Country | |
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Parent | 12317601 | Dec 2008 | US |
Child | 29427966 | US | |
Parent | 12384812 | Apr 2009 | US |
Child | 13474431 | US |
Number | Date | Country | |
---|---|---|---|
Parent | 13474431 | May 2012 | US |
Child | 12317601 | US |