Patent classifications
E
FIXED CONSTRUCTIONS
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E02
HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
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E02B
HYDRAULIC ENGINEERING
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1/00
Equipment or apparatus for, or methods of, general hydraulic engineering; , e.g. protection of constructions against ice-strains
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E02B1/006
Arresting, diverting or chasing away fish in water-courses or water intake ducts, seas or lakes, e.g. fish barrages, deterrent devices; ; Devices for cleaning fish barriers
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