QR codes have come a long way since they were created by Japan based Denso Wave – a subsidiary of Toyota – and they have established themselves as the primary tool for mobile marketing. Denso Wave first used the codes to keep track of inventory for Toyota and the codes have spread throughout Japan ever since. They are now used throughout the nation as a medium for just about anything. The codes have also been gaining a foothold in western society, finding their way to the sides of buildings, buses…
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