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• 17:30, 30 July 2022 Admin talk contribs created page Thomas Midgley (Created page with "'''Thomas Midgley, Jr.''' (18 May 1889 in Beaver Falls, Pennsylvania – 2 November 1944 in Worthington, Ohio) was an American mechanical engineer, chemist, and inventor. He discovered and developed the anti-knock properties of tetraethyl lead added to gasoline and for having invented dichlorodifluoromethane, the prototype of chlorofluorocarbons. Midgley obtained more than 100 patents in his career.")