Classic Machines ScrapersClassic Machines: The Caterpillar 619 motor scraperContrafed PUblishingNovember 30, 2020December 18, 2020 by Contrafed PUblishingNovember 30, 2020December 18, 2020 Caterpillar’s model 619 motor scraper was the very first of their ‘600’ series machines and introduced quite a few innovations not seen on their previous...