Frederick McKinley Jones was an inveterate tinkerer. So it wasn’t surprising that after a sweltering summer drive in Minnesota, he hit upon an idea. Britt Aamodt looks at the inventor behind the refrigerated truck.

Mr. Cool

Daily dose of Minnesota history - MN90: Minnesota History in 90 Seconds" is a history program airing on Ampers stations in Minnesota. It is a co-production of Ampers and the Minnesota Historical Society. Made possible by funding from the Minnesota Art's and Cultural Heritage fund.

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Mr. Cool

Mr. Cool

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