China's love of QR codes
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08.09.17 – 4 3651:36Popular
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25.06.19 – 6 3123:41Published on 8 Sep 2017, 10:52
QR codes never really took off in the U.S. and Europe. In China though - they're big business. CNN Tech takes a look at the things you can do with the black and white squares.
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