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QRS-DeVry Corporation

Hersteller von Projektoren, Chicago

"The DeVry Corporation 1913 - 1929 ... merged with QRS Corp in 1929 to form the QRS-DeVry Corporation, Chicago." - https://collection.sciencemuseumgroup.org.uk/people/cp126813/the-devry-corporation, 26.08.2021

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Schmalfilmprojektor "QRS Model B"
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Created
1928
1927 1929
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