"1958-11-25Z"^^ . "1958Z"^^ . . "Kettering, Charles"@en . . . "1876-08-29Z"^^ . "American inventor, engineer, businessman, and the holder of 140 patents" . "1876Z"^^ . "Charles Franklin Kettering (August 29, 1876 \u2013 November 24 or 25, 1958) was an American inventor, engineer, businessman, and the holder of 186 patents. He was a founder of Delco, and was head of research at General Motors from 1920 to 1947. Among his most widely used automotive developments were the electrical starting motor and leaded gasoline."@en . . "Charles F. Kettering"@en . . "1876Z"^^ . . "1876-08-29Z"^^ . . . "Charles Franklin Kettering"@en . . .