This Oct. 1, 2011 file photo, shows the Google logo at the Google headquarters in Brussels. (AP Photo/dapd, Virginia Mayo)
US approves Google's Motorola bid
Google is counting on Motorola Mobility's more than 17,000 patents — a crucial weapon in an intellectual arms race with Apple, Microsoft and other rivals to gain more control over smartphones, tablets and other mobile devices.
Apple stock breaks $500 level
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