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・ Ferdinand B. Smith
・ Ferdinand Bac
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・ Ferdinand Barbedienne
・ Ferdinand Bardamu
・ Ferdinand Barrot
・ Ferdinand Bauer
・ Ferdinand Becherer
・ Ferdinand Becker
・ Ferdinand Begg
・ Ferdinand Bellermann
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・ Ferdinand Bernhard Vietz
・ Ferdinand Berthier
Ferdinand Berthoud
・ Ferdinand Beyer
・ Ferdinand Bie
・ Ferdinand Bilali
・ Ferdinand Biondi
・ Ferdinand Bischoffsheim
・ Ferdinand Biwersi
・ Ferdinand Bjerke
・ Ferdinand Blumentritt
・ Ferdinand Boberg
・ Ferdinand Boccia
・ Ferdinand Bol
・ Ferdinand Bolstraat
・ Ferdinand Bonaventura, 7th Prince Kinsky of Wchinitz and Tettau
・ Ferdinand Bonn


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Ferdinand Berthoud : ウィキペディア英語版
Ferdinand Berthoud

Ferdinand Berthoud (19 March 1727 – 20 June 1807) was a Swiss chronometer-maker.
==Career==

He was born at Plancemont, Neuchâtel, Switzerland. Having served his apprenticeship with his brother, Jean-Henri, a pendulum maker, he set up a clockmaking business in Paris in 1745 and gained a great reputation for the excellence and accuracy of his marine chronometers. He succeeded the pioneering work of Henry Sully. He was appointed Clockmaker to the Navy in 1762 and Clockmaker to the King in 1773.〔(【引用サイトリンク】 Ferdinand Berthoud )〕 At the king's insistence he travelled to England to view the chronometers of John Harrison.
Together with his great rival, Pierre Le Roy, Berthoud contributed to the development of the chronometer, .〔''Britten's Watch & Clock Makers' Handbook Dictionary & Guide Fifteenth Edition'' p.122 ()〕 He was made a member of the Institute of France and elected a Fellow of the Royal Society of London in 1764.〔(【引用サイトリンク】 title= Library and Archive Catalogue )〕 Among other works he wrote ''Essai sur l'horlogerie'' in 1763.
He died in 1807 at his home in Groslay near Montmorency, Seine et Oise. He had married twice, firstly Mademoiselle Chati of Cean, and then Mademoiselle Dumoustier of Saint Quentin, but had no children. His business passed to his nephew, Louis Berthoud (1759–1813).

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