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Earn +20 ptsQ: The following was not important invention of the early 20th century?
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What was not an important invention in the early 20th century?
Radio was not an important invention in the early 20th century. Instead it was developed by Heinrich Hertz in the 18th century. The cotton gin (APEX)
What was not important invention from the early 20th century?
The Steamboat
What was not an important invention from the early 20th century?
The Steamboat
What was not an important invention form the early 20th century?
The cotton gin
Which was not an important invention of the early 20th century?
the locomotive
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