(CRWE, IPGP, AONE) CRWENewswire Stocks In Action
On its fourth quarter 2011, IPG Photonics Corp - IPGP - posted revenue of $123.5 million, a 22% increase year over year. A123 Systems Inc - AONE - reported that it will supply six Grid Battery Systems to Northern Powergrid.
11 Feb 2012



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