Even during the height of the Great Depression Caterpillar continued developing cutting-edge new products. In July 1938, Caterpillar’s Road machinery division launched a new machine called the Caterpillar Diesel No.12 Auto Patrol. It was renamed a motor grader just one year later, and it remained part of the product for 81 years. The Diesel No.12 went on to be the most recognized, and longest running model in the Caterpillar product line of motor graders.
