Category:Four-state barcodes

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<nowiki>PostBar; PostBar; black-ink barcode system used by Canada Post in its automated mail sorting and delivery operations</nowiki>
PostBar 
black-ink barcode system used by Canada Post in its automated mail sorting and delivery operations
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  • linear barcode
  • postal barcode
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Media in category "Four-state barcodes"

The following 15 files are in this category, out of 15 total.