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Water gate
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Conductive type pen for inputting on touch screen
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Device opening and shutting of waterway
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KR20130037254A
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Device opening and shutting of waterway
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KR20100129842A
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Environmental affinity type floodgate
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The floodgate having fishway
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Apparatus for opening and shutting the floodgate
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Floodgate
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Apparatus for protecting
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KR20090095004A
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Rack and method for fabricating rack
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Apparatus for protecting floodgate switch
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KR20060110679A
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Device opening and shutting of waterway
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