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KR20190002803A
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Tidal power line installed by floating a waterwheel on the surface of water
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KR20170008662A
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Aquatic plant hydroponic plant to prevent the growth of green algae
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Sleep posture correcting device and shoulder rotating muscle strengthening exercise equipment
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Artificial fishway for migration of fish in hydraulic facilities
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Artificial language bypassing underwater
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Underwater beams, artificial fishes installed in dams
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Food Waste Disposal Equipment
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Velcro bands to prevent twisting of laundry
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Artificial reefs to prevent fishing of low-tether fishing boats for protecting fish stocks at sea
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Tooth cleaning composition containing arrowroot powder starch syrup and chewing gum base
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Insecticidal tool for bugs with hot wire coil device used
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