Patent classifications
E
FIXED CONSTRUCTIONS
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E02
HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
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E02D
FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
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15/00
Handling building or like materials for hydraulic engineering or foundations
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E02D15/02
Handling of bulk concrete specially for foundation; or hydraulic engineering; purposes
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E02D15/06
Placing concrete under water
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