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Railway press coverage of InnoTrans 2010 states Siemens revealed the Vectron family, presenting four prototypes to the public on 23 September 2010.
Wikipedia states Siemens revealed the Vectron platform, including four prototypes officially presented to the public, at InnoTrans in Berlin on 23 September 2010.
Report of Vectron presentation at InnoTrans 2010.[1]
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