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The Hong Kong Intellectual Property Department (HKIPD) has granted ACX patent number HK30033478, HK30033982 and 22020005580.8 that cover using Scramble QR Code and non-transferable QR Code in Mobile Virtual Card, and scramble encryption in data communication. ACX Scramble QR Code, changing in every second, is able to operate offline and works with ACX Access Reader and System.
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