Refrigerated Trucks, Invented by Frederick McKinley Jones in 1940
If your refrigerator has any produce from your local grocery store, then you can credit African-American inventor Frederick McKinley Jones. Jones took out more than 60 patents throughout his life, including a patent for the roof-mounted cooling system that’s used to refrigerate goods on trucks during extended transportation in the mid-1930s. He received a patent for his invention in 1940, and co-founded the U.S. Thermo Control Company, later known as Thermo King. The company was critical during World War II, helping to preserve blood, food and supplies during the war.
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