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H. Joret & Cie. of 8 rue Ménars, Paris
Also Ateliers de Montataire H. Joret & Cie (nameplate on Port de Roche (Langon), a steel and/or wrought arch bridge built in 1868
1857 Société Henri Joret founded by Henri Joret (1825-1883).
1882 Succeeded by the Société des ponts et travaux en fer.
1966 The business was absorbed into CFEM (Compagnie française d’entreprises métalliques), established in 1966. CFEM website.