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8-9-2011 Edmonton Oilers traded Ales Hemsky and Jeff Petry to Boston Bruins for Tyler Seguin, Colby Cohen, Maxime Sauve and Dougie Hamilton
8-9-2011 Philadelphia Flyers signed junior Nick Cousins to a 3 year deal
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8-9-2011 Edmonton Oilers traded Andy Sutton to San Jose Sharks for Nick Petrecki
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8-9-2011 Edmonton Oilers traded Ryan Jones and Devan Dubnyk to Los Angeles Kings for Jonathan Quick
9-9-2011 Edmonton Oilers signed Linus Omark to a 2 year extension
9-9-2011 Colorado Avalanche signed UFA Alex Kovalev to a 1 year deal
11-9-2011 San Jose Sharks signed UFA Ray Emery to a 3 year deal