Patent classifications
E
FIXED CONSTRUCTIONS
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E01
CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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E01D
CONSTRUCTION OF BRIDGES,; ELEVATED ROADWAYS; OR VIADUCTS; ASSEMBLY OF BRIDGES
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12/00
Bridges characterised by a combination of structures not covered as a whole by a single one of groups E01D2/00 - E01D11/00
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