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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5/00
Bulkheads, piles, or other structural elements specially adapted to foundation engineering
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E02D5/34
Concrete or concrete-like piles cast in position; ; Apparatus for making same
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E02D5/38
making by use of mould-pipes or other moulds
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E02D5/44
with enlarged footing or enlargements at the bottom of the pile
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