| 21. | The magazine plans to use bar codes in its future editions.
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| 22. | Some of the protesters had bar codes painted on their faces.
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| 23. | The scanner would read the bar code and identify the drug.
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| 24. | For retailers, the bar code change could pose even bigger problems.
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| 25. | Members also get a smaller keybob with the same bar code.
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| 26. | Bar codes can create a digital link to a Web site.
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| 27. | DC plans to charge for the bar codes, not the hardware.
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| 28. | Web sites includes scannable bar codes that connect with winning sites.
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| 29. | The other is the machine that reads the bar code.
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| 30. | In fact, the implementation of bar coding began with groceries.
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