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John Harrison, English clock maker, 19th century. Artist: W HollJohn Harrison, English clock maker, 19th century. Harrison (1693-1776) designed and built the worlds first successful maritime clock
John Harrison, English clock maker, 1768. Artist: W HollJohn Harrison, English clock maker, 19th century. Harrison (1693-1776) designed and built the worlds first successful maritime clock
John Harrison, c1835. Artist: William HollJohn Harrison, c1835. Portrait of the English inventor and horologist wearing a wig. Harrison became famous for resolving one of the most problematic issues of his day - how to determine longitude
John Harrison (1693-1776). Inventor of the marine chronometer in 1757, (20th century). Artist: Thomas KingJohn Harrison, (1693-1776). Inventor of the marine chronometer in 1757, (20th century). A self-educated English carpenter and clockmaker who invented the marine chronometer
