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""Christenson's Television Service is a local dealer of SONY Television sets.
""Christenson's Television Service is a local dealer of SONY Television sets. Mike Olson, store manager, has been trying to find ways to lower inventorylevels because of increasing holding costs and limited storage space. Mikehas est that the store sells about 800 SONY sets annually. Estimated holdingcost is $30 per set and ordering cost is $20 per order