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James Harrison was a Scottish-born Australian newspaper printer, journalist, and inventor. He is best known for patenting a vapor-compression refrigeration system in 1856, which he developed to aid in brewing and meat preservation. Harrison built the world's first practical commercial ice-making mac...
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Jacob Perkins (1766–1849) was an American inventor, engineer, and mechanic from Newburyport, Massachusetts, who later spent much of his career in London. He received dozens of patents over his lifetime, covering innovations in nail manufacturing, engraving, steam engines, and firearms. In 1834 he wa...
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