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Directional Manhole Covers
Photos of Directional Manhole Covers (Via: yankodesign)



Directional Manhole Covers Photos

The ‘Eco Sign’ was designed by Cheolyeon Jo and Youngsun Lee and has to be one of the most efficient inventions of all time. The only minor hiccup is that you will probably get run over by a car while…[More]


‘Eco Sign' Finds Your Bus Stops, is Powered by Rain Drops 1‘Eco Sign' Finds Your Bus Stops, is Powered by Rain Drops 2‘Eco Sign' Finds Your Bus Stops, is Powered by Rain Drops 3




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