. . . . "Harry Ward Leonard (February 8, 1861 \u2013 February 18, 1915) was an electrical engineer and inventor. He is best known for his invention, the Ward Leonard motor control system. Equipment based on this invention remained in service into the 21st century."@en . . "1915Z"^^ . "1861-02-08Z"^^ . . "Harry Ward Leonard"@en . "American electrical engineer" . . . "1915-02-18Z"^^ . "1861Z"^^ . "Leonard, Harry Ward"@en . .