Alfred-Alexandre COUTUREAU
1855 - 1929 (73 years)-
Name Alfred-Alexandre COUTUREAU Birth 28 May 1855 Flins-sur-Seine, Seine-et-Oise, France 
[1] Gender Male Occupation Ingénieur-géomètre Death 4 Mar 1929 Saint-Cloud, Seine, France Person ID I20097 bmds Last Modified 22 Dec 2023
Father Alexandre COUTUREAU, b. 23 Apr 1825, Flins-sur-Seine, Seine-et-Oise, France d. 22 Apr 1909, Saint-Cloud, Seine, France (Age 83 years) Mother Louise Adèle COQUELIN, b. 9 May 1832, Flins-sur-Seine, Seine-et-Oise, France d. 1 Dec 1872, Flins-sur-Seine, Seine-et-Oise, France (Age 40 years) Family ID F7975 Group Sheet | Family Chart
Family Léonie Marie-Florine GIRARD, b. 9 Jan 1859, Moisselles, Seine-et-Oise, France d. 13 Oct 1926, Saint-Cloud, Seine, France (Age 67 years) Marriage 26 Oct 1880 Montlignon, Seine-et-Oise, France Age at Marriage Alfred-Alexandre : 25 years old | Léonie : 21 years old. Children 5 sons and 7 daughters 1 
. Marie COUTUREAU, b. 28 Nov 1881, Versailles, Seine-et-Oise, France d. 28 Nov 1971, Caen, Calvados, France (Age 90 years)2 . Georges COUTUREAU, b. 2 Dec 1883, Versailles, Seine-et-Oise, France d. 23 Oct 1902, Saint-Cloud, Seine, France (Age 18 years)3 . Marguerite COUTUREAU, b. 1 Feb 1885, Saint-Cloud, Seine, France d. 10 Sep 1906, Saint-Cloud, Seine, France (Age 21 years)4 . Geneviève COUTUREAU, b. 8 Oct 1887, Saint-Cloud, Seine, France d. 30 Oct 1942, Montebourg, Manche, France (Age 55 years)+ 5 . Louis COUTUREAU, b. 28 Oct 1888, Saint-Cloud, Seine, France d. 23 Apr 1948, Saint-Cloud, Seine, France (Age 59 years)6 . Léon COUTUREAU, b. 2 May 1890, Saint-Cloud, Seine, France d. 8 Aug 1890, Saint-Cloud, Seine, France (Age 0 years)7 . Paul COUTUREAU, b. 6 Jul 1891, Saint-Cloud, Seine-et-Oise, France d. 7 Oct 1916, Morval, Somme, France (Age 25 years)+ 8 . Jeanne COUTUREAU, b. 24 Oct 1892, Saint-Cloud, Seine, France d. 12 Mar 1964, Saint-Cloud, Seine, France (Age 71 years)+ 9 . Louise COUTUREAU, b. 7 Jun 1894, Saint-Cloud, Seine, France d. 14 Nov 1993, Le Port-Marly, Yvelines, France (Age 99 years)+ 10 . Léonie COUTUREAU, b. 23 Mar 1897, Saint-Cloud, Seine, France d. 7 Nov 1980, Boulogne-Billancourt, Hauts-de-Seine, France (Age 83 years)+ 11 . Madeleine COUTUREAU, b. 16 May 1898, Saint-Cloud, Seine, France d. 14 Oct 1998, Caen, Calvados, France (Age 100 years)+ 12 . Clodoald COUTUREAU, b. 22 Jan 1900, Saint-Cloud, Seine, France d. 30 Dec 1988, Châlon-sur-Vesle, Marne, France (Age 88 years)Family ID F1438 Group Sheet | Family Chart
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Event Map 
Birth - 28 May 1855 - Flins-sur-Seine, Seine-et-Oise, France 
Marriage - 26 Oct 1880 - Montlignon, Seine-et-Oise, France 
Death - 4 Mar 1929 - Saint-Cloud, Seine, France Pin Legend 
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Notes - Alfred-Alexandre Coutureau, ingénieur-géomètre de son état, demeurait au 13, rue Preschez à Saint-Cloud et fut l’inventeur de l’équerre d’alignement à réflexion, un outil indispensable aux topographes.
Coutureau optical square
This optical square was invented by Alfred-Alexandre Coutureau ingénieur-géomètre in Saint-Cloud, France and patented in 1885 in France (pat. 169887), in Luxembourg (pat. 604) and in Germany (DRP 36083). According to the Berthelemy catalogue, the Coutureau optical square was adopted for use by the Italian Cadastre.
Several (slightly different) versions are known: see Berthelemy 1890, Muret 1906, Morin 1910, and Secretan 1924. The optical square pictured at left is identical to the 1922 version sold by Secretan in their 1924 catalogue.
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NOTES / RÉFÉRENCES
[1] Catalogue et Prix des Instruments de Mathématiques...A. Berthélemy, 1890, page 3 and 12. Library University of Chicago.
[2] H. Morin; Catalogue Général 37th edition, 1910-11, page 35. CNUM.
[3] Sécrétan; Instruments de précision, 1924, page 13. CNUM.
[4] Laussedat, Aimé; Recherches sur les instruments, les méthodes et le dessin topographiques, Gauthier-Villars, Paris 1898-1903.
[5] Charles Muret; Topographie: applications spéciales à l’agriculture; arpentage, nivellement, Cadastre, 1906, page 69. Internet Archive.
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Sources