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description

Summary

Marshalling yard retarder, Fig. 1

label_outline

Tags

patents patent drawings us patent office rail track diagrams retarders rail transport switch yards united states patent drawings inventions
date_range

Date

06/11/1984
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Source

USPTO
link

Link

http://uspto.gov/
copyright

Copyright info

public domain

label_outline Explore Switch Yards, Rail Track Diagrams

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Topics

patents patent drawings us patent office rail track diagrams retarders rail transport switch yards united states patent drawings inventions