Frederick McKinley ... projectors into talking projectors, McKinley also found ways to enhance picture quality. By the late 1930s, Jones developed portable refrigeration to help the U.S. military ...

With over 60 patents to his name, inventor Frederick McKinley Jones had lots of ideas. But he is best known for developing the first portable refrigeration unit, which was used by the military to ...

Morgan, who invented the three-color traffic light we all use to get where we are going safely; and Frederick McKinley Jones, who invented automated refrigerated trucks, enabling me to get ...