Frederick McKinley Jones received three patents (numbers 2,475,841 – 2,475,843). Patent 2,475,841 was for a portable air-cooling unit for trucks, 1949.
The Book and Beyond
Frederick McKinley Jones received three patents (numbers 2,475,841 – 2,475,843). Patent 2,475,841 was for a portable air-cooling unit for trucks, 1949.