Minneapolis-Moline was formed by the merger of Minneapolis Steel and Machinery, the Minneapolis Threshing Machine Company, and the Moline Plow Company in 1929. Minneapolis Steel brought tractor experience to the group, having produced tractors for Case and Bull, along with its own line of Twin City tractors. In the late 1930s, Minneapolis-Moline unveiled the model UDLX Comfotractor. Featuring a high speed gear box and a full cab with heater and radio it was at least a generation ahead of its time in terms of operator comfort. In 1963, Minneapolis-Moline was purchased by White Motors, which dropped the Minneapolis-Moline name in 1974.