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
Load children
23/00
Easily dismountable or movable tracks, e.g. temporary railways; Details specially adapted therefor
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E01B23/10
Shiftable tracks for heavy loads, e.g. carrying excavators
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