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KR20040100321A
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A voltage controlled starting relay for an induction motor
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KR20030043158A
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A voltage controlled starting relay for an induction motor
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KR100269795B1
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Complex digital relay
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KR100247083B1
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A relay for protecting general induction type motor
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KR900000762B1
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Induction motor
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KR890004957B1
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Magnetic contactor
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KR930002748B1
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Emergency protective circuit
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KR890003533B1
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Multi-relay
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KR890003300B1
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Induction motor
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KR890000968B1
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Arcless electronic contact machine
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KR890000671B1
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A switch operated by electronic system
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KR890001044B1
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Excess electric current relay of electron type
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KR880001244B1
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Arcless switch
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KR880001243B1
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Dual timer
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KR880001149B1
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Over current relay
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KR870000400B1
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Over current relay
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KR870000124B1
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Arrangement for starting motor
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KR860000479B1
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Power circuit
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KR870000715B1
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Preventive system of electric shock for ac arc welder
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KR850001219B1
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Overload relay
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