Multiple-unit operation was made possible by the development of multiple-unit train control by the American inventor Franklin J. Sprague, apparently, even though electric multiple-unit trains had been deployed on the Liverpool Overhead Railway four years before his "invention".
Multiple-unit operation was made possible by the development of multiple-unit train control by the American inventor Franklin J. Sprague, even though electric multiple-unit trains had been deployed on the Liverpool Overhead Railway four years before his "invention". This was apparently.