Matches in DBpedia 2014 for { ?s ?p <http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=%2Fnetahtml%2FPTO%2Fsrchnum.htm&r=1&f=G&l=50&s1=6,402,975.PN.&OS=PN/6,402,975&RS=PN/6,402,975> . }
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