James Jay Ryan papers 1933-1973
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American society of mechanical engineers
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Ryan, James J. (James Jay), 1903-1973.
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James Jay Ryan, B.S. (1925) University of Iowa, M.S. (1929) University of Pittsburgh. Professor mechanical engineering at the University of Minnesota (1931-1963). Best known for his inventions of the flight data recorder and the retractable seat belt. James Ryan was born on 27 November 1903 in LeClaire, Iowa. In 1925 he received his B.S. in mechanical engineering from the University of Iowa, and in 1929, his M.S. in mechanical engineering from the University of Pittsburg...
Minnesota Society of Professional Engineers.
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