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Longbow Research Downgrades National Instruments (NATI) to Neutral Aug 10, 2010 09:56AM
Longbow Upgrades National Instruments (NATI) to Buy Apr 1, 2010 08:33AM
Longbow Upgrades National Instruments Corporation (NATI) o Buy Apr 1, 2010 07:54AM
Longbow Research Initiates Coverage on National Instruments (NATI) with a Neutral Jun 3, 2009 11:19AM