Secret Barcoder Ring Postal Barcoder (Win) 2.1.4 Creates postal barcodes for bulk mail and business reply. Also creates barcoded tray/sack tags for bulk mailing. Print barcodes one at a
| MaterialWorlds Simulations 1.5 Live interactive physics simulations let you explore the Solar System (orbits, seasons, gravity, tides, comets and satellites), play
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