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August 1, 2025
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29 Apr 1769 Jahr - Scottish inventor James Watt is granted a British patent for "A method of lessening the consumption of steam in steam engines" – the separate condenser, a key improvement (first devised by Watt in 1765) and the basis for the Watt steam engine which stimulates the Industrial Revolution

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29 Apr 1769 Jahr
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~ 256 years ago