https://www.phillyvoice.com/tags/ellen-kullman/
Ellen Kullman | PhillyVoice
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ellen kullman
https://drexel.edu/engineering/news-events/news/archive/2015/January/drexelnamesdupontceoellenkullmanits2015engineeringleaderoftheyear/
Drexel Names DuPont CEO Ellen Kullman Its 2015 Engineering Leader of the Year | Drexel Engineering