3 ms·
The patent was filed in 2009 https://patents.google.com/patent/US8246454B2/en https://patents.google.com/patent/US8246454B2/en
by skinfaxi 1mo ago
The patent was filed in 2009 https://patents.google.com/patent/US8246454B2/en https://patents.google.com/patent/US8246454B2/en