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Targeted frequency selection for two-way wireless communication system
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Plastic shelf rails for electronic shelf labels and locking clips for attaching same to metal shelves
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Subglobal area addressing for electronic price displays
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Promotional light
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Low-power two-way wireless communication system for electronic shelf labels
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Subglobal area addressing for electronic price displays
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Technique for communicating with electronic labels in an electronic price display system
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Localizing power faults in an electronic pricing display system
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System for recognizing display devices
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Apparatus for communicating price changes including printer and display devices
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