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American Inventors of the 20th Century. Enslow Publishing, LLC. ISBN 978-1-4646-1159-9. "Mary Beatrice Davidson Kenner: The Forgotten Inventor Who Changed...

American Inventors of the 20th Century. Enslow Publishing, LLC. ISBN 978-1-4646-1159-9. Gustafson, Kristi (30 November 2010). "Female passenger subjected...