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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29/00
Laying, rebuilding, or taking-up tracks; Tools or machines therefor
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E01B29/32
Installing or removing track components, not covered by the preceding groups, e.g. sole-plates, rail anchors
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