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E02B3/00—Engineering works in connection with control or use of streams, rivers, coasts, or other marine sites; Sealings or joints for engineering works in general
E02B3/02—Stream regulation, e.g. breaking up subaqueous rock, cleaning the beds of waterways, directing the water flow
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FR25404D1921-09-221921-09-22Système d'utilisation et de multiplication de la vitesse des cours d'eau en vue de la production de la force motrice
ExpiredFR25404E
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