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Twentieth Century Inventions A Forecast - George Sutherland
- Duration seconds
- 24132
Podcast
http://www.adfreebooks.com - 1000+ audiobooks, all ad free! The author, William Henry Doolittle, was an Expert and Patent Solicitor, Ex-Examiner in the Patent Office and Assistant Commissioner of Patents at Washington, Writer of Inventions, etc. He put together this collection to illustrate a period of remarkable advances in technology across the board. -
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