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Postnet(Postal Numeric Encoding Technique) is a barcode symbology which encodes numbers into a series of bars. It is of variable length and accepts numbers only. It includes a checksum.
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QR Code
The acceptable data for this property is Alphanumeric, QR Code is a barcode symbology that accepts the following Alphanumeric characters 0–9, A–Z (upper-case only), space, $, %, *, +, -, ., /, :
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