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A person of ordinary skill not an automaton: The US Supreme court in KSR
Some excepts from the U.S. Supreme Court's decision in KSR International
KSR INTERNATIONAL CO. v. TELEFLEX INC. ET AL. No. 04–1350. Argued November 28, 2006—Decided April 30, 2007
http://www.supremecourtus.gov/opinions/06pdf/04-1350.pdf