1. The contract also calls for 21-inch monitors, printers and bar code readers . 2. Other common applications of lasers are bar code readers and laser pointers. 3. The division's PC Dinners is a microwave with a built-in bar code reader . 4. TicketMaster helped outfit Los Angeles'Staples Center with bar code readers . 5. Both companies sell bar code readers that connect shoppers to giant Web-based product information databases. 6. By the 1980s bar code readers were added. 7. At Pacific Bell Park, the technology begins at the gate, where electronic turnstiles include bar code readers . 8. This code must be scanned by a bar code reader which unlocks the turnstile at each ride platform. 9. The owner of the assets can take inventory with a mobile bar code reader and then produce a report. 10. Difficulties arose over a requirement that the food each man ate be logged electronically with a bar code reader .