Bellingham grocery chain Haggen has put six more stores up for sale, three of which are in the Puget Sound region. The local stores are in Puyallup, Federal Way and Burien. The three other stores are located in Oregon. These stores will not necessarily be sold off, however. Haggen – which filed for Chapter 11 bankruptcy in September after the company bought 146 Albertsons and Safeway stores – already identified these stores as part of the company's successful 37 core stores, and believes it…