![Smithsonian NMAAHC on Twitter: "Self-taught engineer Frederick McKinley Jones holds more than 60 patents for inventions ranging from an automatic ticket-dispensing machine to an automatic refrigeration system for trucks. See his patent Smithsonian NMAAHC on Twitter: "Self-taught engineer Frederick McKinley Jones holds more than 60 patents for inventions ranging from an automatic ticket-dispensing machine to an automatic refrigeration system for trucks. See his patent](https://pbs.twimg.com/media/Dg4fQbqXcAEdV8c.jpg)
Smithsonian NMAAHC on Twitter: "Self-taught engineer Frederick McKinley Jones holds more than 60 patents for inventions ranging from an automatic ticket-dispensing machine to an automatic refrigeration system for trucks. See his patent
Travero - Frederick McKinley Jones designed a portable air-cooling unit for trucks; in 1939 he patented the world's first successful refrigerated transportation system. He also formed the US Thermo Control Company which
![Rick Brutti on Twitter: "Frederick McKinley Jones of Minneapolis, Minnesota patented an air conditioning unit for trucks 78 years ago today, brought great improvement to the long-haul transportation of perishable goods https://t.co/4cgawGchjP Rick Brutti on Twitter: "Frederick McKinley Jones of Minneapolis, Minnesota patented an air conditioning unit for trucks 78 years ago today, brought great improvement to the long-haul transportation of perishable goods https://t.co/4cgawGchjP](https://pbs.twimg.com/media/Dh5zzz7U8AIVrNL.jpg)
Rick Brutti on Twitter: "Frederick McKinley Jones of Minneapolis, Minnesota patented an air conditioning unit for trucks 78 years ago today, brought great improvement to the long-haul transportation of perishable goods https://t.co/4cgawGchjP
![Black ThenThe Legacy of a Black Inventor, Frederick McKinley Jones, in the Refrigeration and Cinema Industries - Black Then Black ThenThe Legacy of a Black Inventor, Frederick McKinley Jones, in the Refrigeration and Cinema Industries - Black Then](https://blackthen.com/wp-content/uploads/2017/07/Frederick-McKinley-Jones2.jpg)