f this labor can be ma- of the annual operating expense thus developed is pro- terially reduced by securing a greater performance per rated against each operating unit of the equipment, the unit of labor engaged, and, consequently, it should gain daily cost of each wagon or truck in the service be-… … Heavy Duty Type of Industrial Tractor Made by the Buda Company. Chicago.
Automobiles, Electric · Electric vehicles
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
