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Jan Józef Baranowski (born on September 7, 1805 in Śmiłowicz [1], died on March 30, 1888 in London) - Polish economist and financier, nobleman, linguist, engineer and inventor from the group of the Great Emigration [footnote needed]. He was the author of inventions in the field of railways, communications, accounting and calculating machines, including semaphore, ticket validator and gas meter [2] [3].
