The Lexington avenue subway, New York
Subway cars and electric locomotives predominate in rolling stock purchases
Supervisory controlling system
Track activity continues [midline ellipsis] car purchases decline
Test on properties of electric insulating materials
Trazione ad Accumulatori Elettrici su Strada e su Rotaie
Salvaged meter parts given chemical cleaning
Diesel electrics on Missouri Pacific
Susquehanna abandons steam power
Great Northern gets first postwar transcontinental streamliners
Great Northern gets first postwar transcontinental streamliners
Elektrische Netzwerke und Maschinen in Matrizendarstellung