Apr 3, 2014Science and Technology

Hi. I am not participating in the context, but I found that US 7843225 B2 could also be a known reference.

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Andy ChuHi Pedro. Thanks for the comment! Fortunately, US 7,843,225 cannot act as a known reference as it was first filed April 14th, 2009 which is after the date criteria of the contest (July 29th, 2002). Thanks for bringing this to our attention!
Apr 3, 2014