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Richard Trevithick - Wikipedia
Richard Trevithick | Inventor of Steam Locomotive & High …
Richard Trevithick summary | Britannica
Richard Trevithick - ASME
Richard Trevithick, Locomotive Pioneer - ThoughtCo
Richard Trevithick - The Steam Locomotive | British Heritage
Richard Trevithick | Encyclopedia.com
Richard Trevithick - Engineering and Technology History Wiki
Life of Richard Trevithick | History of science and technology
Biography – ERIH