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KR102001527B1
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Lane separator
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Waterway giving the safety to a traveling vehicle
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Speed bumper
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Sludge removing apparatus
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Drainage canal
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Speed bumps
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Waterway Structure
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Upper plate road to prevent a breakaway of vehicles
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Road structure for stopping vehicles
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Equipment for checking the illuminator installed inside a tunnel
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Roda structure having the cleaning equipment
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Road structure for preventing the overspeed
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Bridge's upper plate structure for preventing a slide
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Incline making system
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Road structure for low gear
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Stop-system intercepting a drive
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Road structure making that cart is able to pass on the place
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