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KR20070120312A
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Information system with dmb for train
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KR20070120311A
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Train and station bulding monitoring system
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KR20030045006A
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image transmitting sytem
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KR20030045005A
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digital image transmitting sytem
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KR20030058989A
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fixing structure for info-vision
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KR20030040256A
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power supply for info-vision
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KR20030029095A
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indicating light which is equipped information display system for passenger
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KR20040020409A
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Multimedia information displaying system having a function for transmitting static information and files
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KR20040020407A
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Apparatus for receiving and relaying image signal
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KR20040020405A
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Apparatus for transmitting image signal
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KR20040011022A
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System and method for displaying information of a train using single transmission line
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KR20010016365A
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data transfer system for subway-infovision
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KR20010016339A
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a method of advertising shopping area around subway station
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KR20000063562A
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infovision system for train
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KR20000024852A
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Bus information system located in bus stop
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