Amazon Patents Social Networking?(patft.uspto.gov)
patft.uspto.gov
Amazon Patents Social Networking?
http://patft.uspto.gov/netacgi/nph-Parser?Sect1=PTO1&Sect2=HITOFF&d=PALL&p=1&u=/netahtml/PTO/srchnum.htm&r=1&f=G&l=50&s1=7,739,139.PN.&OS=PN/7,739,139&RS=PN/7,739,139
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