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https://drivepatents.com/patents/1380055 · 26 Mar 2026
A system and method for automating railroad maintenance by a tie gang using electronic tie marking (ETM) configured to optimize railroad asset maintenance. The system enables collision avoidance between members of the tie gang performing maintenance on rai...
https://drivepatents.com/patents/1009145 · 5 Oct 2011
It is an object to provide a route searching system that can easily carry out the search processing of a route covering different time zones. A route searching system is provided with a time zone data memory means that stores information of a time zone whi...