Patent classifications
E
FIXED CONSTRUCTIONS
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E01
CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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E01B
PERMANENT WAY; PERMANENT-WAY TOOLS; MACHINES FOR MAKING RAILWAYS OF ALL KINDS
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23/00
Easily dismountable or movable tracks, e.g. temporary railways; Details specially adapted therefor
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E01B23/02
Tracks for light railways, e.g. for field, colliery, or mine use
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