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NEW YORK (TheStreet) -- Nokia shares closed trading up 5.1% on Wednesday following an upgrade to "buy" from "hold" by analysts at Jefferies today.The firm increased the company's rating citing potential intellectual property deals in the near future as a reason for the upgraded outlook.Jefferies raised the company's price target to $10.31 from $7.32.Must Read: Warren Buffett's 25 Favorite Growth ...