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Inventors
borndied
1793, Jun 291857, Oct 9
a Czech Austrian forester and inventor who designed one of the first working ship's propellers. He worked in Landstrass (Kostanjevica on the Krka river in Carniola in modern-day Slovenia), where he tested his ship propellers for the first time. In 1821 he was transferred to Trieste (modern-day Italy), the biggest port of the Austrian Empire, where his tests were successful. He was awarded a propeller patent in 1827. He modified a steam-powered boat Civetta by 1829 and test-drove it in the Trieste harbor at six knots before the steam conduits exploded.
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