KR940000417B1
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Fault coin detecting sensor
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KR930005712B1
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Traffic signal wireless circuit
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KR930010332B1
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Life information receive terminal for handy
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KR930011391B1
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Data processing circuit
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KR920009956B1
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Sound generating circuit for a blind person
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KR920006637B1
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Capstain controller of motor
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KR910000270B1
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Vehicle detector
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KR890005931Y1
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Electronics used housing
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KR890003530B1
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Automatic supply equipment of connector base
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KR880002691B1
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Floppy disk control apparatus
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KR880000081B1
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Dialing circuit of a wireless telephone
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KR890000278B1
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Display control system
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KR880001150B1
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Power circuit
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KR870001636B1
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Noise silence circuit of a automatic gain regulator
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KR860002178B1
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A wireless telephone
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KR860001328B1
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Telephone-number recorder
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KR860000881B1
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A key phone
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KR860000883B1
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A key phone
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KR860000163B1
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A telephone for car
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KR850000988B1
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Floppy disk drive apparatus
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