Category:Union Switch and Signal

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English: Union Switch and Signal (US&S) is a railway signal manufactuing company in the US, founded in 1881. US&S merged with Ansaldo Signalling and Transportation Systems (Ansaldo STS); as of 2009 it does business as Ansaldo STS–USA.

Media in category "Union Switch and Signal"

The following 34 files are in this category, out of 34 total.