Details of barrages or weirs (cleaning or keeping clear the surface of open water E02B15/00 )

Child Classifications

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• E02B 8/02 Sediment base gates; Sand sluices; Structures for retaining arresting waterborne material
• E02B 8/04 Valves, slides, or the like; Submerged sluice gates
• E02B 8/06 Spillways; Devices for dissipation of energy, e.g. for reducing eddies
• E02B 8/08 Fish passes ; Passages for rafts or boats