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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19/00
Structural or constructional details of bridges
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E01D19/12
Grating or flooring for bridges; Fastening railway sleepers or tracks to bridges
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E01D19/125
Grating or flooring for bridges
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