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Downloadable electronic data files featuring two dimensional codes; two dimensional data code readers; bar code readers; two dimensional datacode scanners; bar code scanners; electronic database featuring two dimensional codes recorded on computer media and capable of being read by two dimensional code readers and scanners; computer programs for two dimensional code drawing, computer programs for bar code drawing, computer program recorded on compact disks for two dimensional code drawing; and computer program recorded on memory cards for two dimensional code drawing; downloadable mobile application for scanning and reading codes