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What did Paul E Williams invent?

April 26, 2017invent

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What did Paul E Williams invent?

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The first man to ever make a helicpotor was Pual Cornu. The First man to ever make a WORKING helecoptor was igor Sikorsky. Paul E Williams was not the inventor of the helicoptor he was a great architect that lived in south california. He was known for his “Upside Down” drawings.