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What African-American invented various refrigeration systems for trucks, ships, and trains, which prevented food from spoiling, especially on long-haul trips?
a) Joseph A. Numero
b) David N. Crosthwait Jr.
c) Benjamin F. Jackson
d) Frederick M. Jones
Answer: d) Frederick M. Jones. He and Joseph A. Numero founded Thermo King. Jones also invented many other types of items, receiving over 60 patents in all.
Publication date: 12/24/2001
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Cherie Preville is Education and Products Editor. She can be contacted at 248-244-6496 or cheriepreville@achrnews.com.
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