File:Four State Barcode.png
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![File:Four State Barcode.png](https://upload.wikimedia.org/wikipedia/commons/thumb/1/16/Four_State_Barcode.png/800px-Four_State_Barcode.png)
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Original file (900 × 544 pixels, file size: 29 KB, MIME type: image/png)
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Date/Time | Thumbnail | Dimensions | User | Comment | |
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current | 03:57, 24 July 2009 | ![]() | 900 × 544 (29 KB) | wikimediacommons>Orbus | {{Information |Description={{en|1=A schematic of the four types of bars present in the four-state barcode schema used by the USPS for Intelligent Mail barcodes.}} |Source=Own work by uploader |Author=Orbus |Date=2009-07-23 |Permission= |oth |
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