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https://patents.google.com/patent/US20080270152 https://patents.google.com/patent/US20080270152 https://patents.google.com/patent/US20070244837 https://patents
by charleslmunger 2y ago
https://patents.google.com/patent/US20080270152 https://patents.google.com/patent/US20080270152
https://patents.google.com/patent/US20070244837 https://patents.google.com/patent/US20070244837