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KR102053164B1
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Subway Flood Rolling Gate for Disaster Prevention
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KR102070253B1
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Support structure of thermal observation device
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KR101982222B1
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Cable tie-guard device for handles
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Conducting movable beam of low water layer discharge structure
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KR101934406B1
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Conducting movable beam of low water layer discharge structure
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KR101855688B1
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Hydraulic hoist brake device using pin jack
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Water gate opening and closing device using worm gear
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Gate pump equipped with flap valve having variable load
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Emergency drive unit for opening and closing floodgates
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KR101586997B1
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Emergency drive unit for opening and closing floodgates
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KR101574680B1
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Shafts sag prevention device for opening floodgates
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KR101574677B1
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Shafts sag prevention device for opening floodgates
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Floodgate for maintenance
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Plane processing device of high pressure radial gate
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How gate side processing of high pressure radial gate
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KR101528474B1
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Small water power generation apparatus having prevention function for water inflow structure and discharge hoee blockage of bearing unit
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KR101475730B1
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Switchgear for a floodgate by using a two way wire drum
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KR101471808B1
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The water pump is equipped with anti-vortex
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KR101341890B1
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Watertight door for subway tunnel
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KR101341892B1
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Sliding gate system intalled on the road
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