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Featuring Union Switch & Signal equipment photos
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Last additions - Chicago Subway
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 UR Interlocking Machine, South Portal32 viewsMar 05, 2012
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 UR Interlocking Machine, South Portal33 viewsMar 05, 2012
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 UR Interlocking Machine, South Portal38 viewsMar 05, 2012
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 UR Interlocking Machine, South Portal35 viewsMar 05, 2012
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 UR machine, North Portal30 viewsMar 05, 2012
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 UR machine, North Portal29 viewsMar 05, 2012
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 UR machine, North Portal29 viewsMar 05, 2012
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 UR machine, North Portal31 viewsMar 05, 2012
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 UR machine, North Portal30 viewsMar 05, 2012
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 UR machine, North Portal30 viewsMar 05, 2012
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 UR machine, North Portal31 viewsMar 05, 2012
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 UR machine, North Portal36 viewsMar 05, 2012
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 UR machine, North Portal30 viewsMar 05, 2012
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 UR Machine, State St.27 viewsMar 05, 2012
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 UR machine, North Portal36 viewsMar 05, 2012
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 UR Machine, State St.30 viewsMar 05, 2012
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 UR Machine, State St.34 viewsMar 05, 2012
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 Logan Square - UR Console30 viewsMar 05, 2012
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 UR Machine, State St.31 viewsMar 05, 2012
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 Logan Square - UR Console29 viewsMar 05, 2012
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 Logan Square - UR Console31 viewsMar 05, 2012
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 Logan Square - UR Console35 viewsMar 05, 2012
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 Portable Communication System59 viewsMar 05, 2012
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 Portable Communication System56 viewsMar 05, 2012
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 Portable Communication System59 viewsMar 05, 2012
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 Portable Communication System60 viewsMar 05, 2012
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 Portable CTA Receiver Unit59 viewsMar 05, 2012
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 Portable CTA Receiver Unit61 viewsMar 05, 2012
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 Portable CTA Transmitter Unit61 viewsMar 05, 2012
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 Portable CTA Transmitter Unit65 viewsMar 05, 2012
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 B-30 Machine, Lake & Well St. Installation28 viewsMar 05, 2012
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 B-30 Machine, Lake & Well St. Installation33 viewsMar 05, 2012
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