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A method and portable device for paying public transpotation fee
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Unmanned parking control system
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System for detecting vehicles for decoding and offering information of traffic of section in street network
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System for detecting vehicles for decoding and offering information of traffic of section in street network
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A village broadcasting system
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An apparatus for sensing ink leve
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A stereo vision monitoring system
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A system for detecting car speed regulation narroe area
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Traffic safty system for pedestrian safety
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A system for detecting car being violated trafficsignal at the intersection
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A car signal controlling system of left turn
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Bus loaded type unmanned traffic controlling system
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Vehicle passing sensing system and notifying method using the same
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