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RunBeck ballot printing company
'This is one of the most sensitive parts of the process. Each ballot has a bar code that tells the machine exactly what kind of ballot it is — there can be thousands of varieties in a single election — and then determines from a database of voter registration records which person on the list should receive that particular ballot.
SAUCE
https://www.wyso.org/2020-05-03/ballot-printers-increase-capacity-to-prepare-for-mail-voting-surge