Son of Louis Breguet (1804-1883), he succeeded his father at the head of his workshops. Representing the fourth generation, Antoine is a gifted person. It powerfully contributes to consolidating the first steps of emerging electrical engineering. Antoine will only live thirty-one years and yet his work equals in importance that of his father and his great-grandfather. He is the first in his family to go to graduate school. Among the manufactures of this time we can list: Gramme's machine, experimental and laboratory devices: electromagnets, induction coil, capacitors. He is also the inventor of a recorder anemometer driven by electricity in 1875 and of a mercury telephone