PATENT ROULETTE a game that's explain Invention,Utility Model & Design patent
source : http://www.china-iprhelpdesk.eu/emodule/3/patent-roulette
source : http://www.china-iprhelpdesk.eu/emodule/3/patent-roulette
source : http://www.china-iprhelpdesk.eu/emodule/3/patent-roulette