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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8/00
Details of barrages or weirs; ; Energy dissipating devices carried by lock or dry-dock gates
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E02B8/02
Sediment base gates; Sand sluices; Structures for retaining arresting waterborne material
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