Tradewind, a well established manufacturer and online retailer of point of sale (POS) solutions, introduce clients to their range of street seller stands. Corwen, England, October 24, 2009 -- Tradewind, a well established manufacturer and online retailer of point of sale (POS) solutions, introduce clients to their range of street seller stands. Used by promoters and newspaper sellers as marketing tools for many years, street seller stands offer a high visibility means for both selling and canv ...