(Q120500018)

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Check-in QR code

The QR code that is scanned at specific venues to record check-in locations, used for contact tracing and epidemiologic investigations during the COVID-19 pandemic

venue code
check-in code
location code

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Check in CBR sign outside the NGA July 2021.jpg
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Check-in QR codes

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Wikipedia(2 entries)

enwiki Check-in QR code
zhwiki 场所码

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commonswiki Category:Check-in QR codes