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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15/00
Movable or portable bridges; Floating bridges
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E01D15/14
Floating bridges, e.g. pontoon bridges
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E01D15/20
collapsible, expandable, inflatable or the like; with main load supporting structure consisting only of non-rigid members
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