Inventions that Shook the World - Season 1 Episode 4 -
The 1930s
In a decade dominated by the Great Depression, the inventors of the 1930s are desperately trying to make a living. They come up with some simple yet ingenious inventions that are still practical necessities in our fast-paced life.Featured inventions:HelicopterXerographyParking MeterWalkie TalkieElectric Guitar
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