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Calendar of Industrial Pioneers

Abstract

September 17, 1823. Abraham Louis Breguet died. —The foremost horologist of his day, Breguet was born in Switzerland in 1747, but at an early age removed to Paris, where he became a member of the Bureau des Longitudes and of the National Institute. He is remembered for his improvements in the escapement of watches and his invention of the sympathetic pendulum and of a sensitive metallic thermometer.

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