Answer:
Gustavus F. Swift
Explanation:
Gustavus F. Swift was a cattle dealer in the Midwest who built a meatpacking company during the late nineteenth century. His development of ice-cooled rail coach, allowed his company to ship meats to all parts of the country, which ushered the era of cheap beef. The meatpacking plants of Chicago first to use assembly line production techniques. Lines help in completion work in less time with fewer efforts by building various work stations in one line.