Richardson et Davidson
Richardson & Davidson of Paris
1832 Listed as engineers & mecaniciens, iron & brass founders, and steam engine makers at 4 rue de Thionville, La Villette. [1]
1838 Robert Davidson, engineer-mechanician, living at rue de Thionville, La Villette, was in partnership with Claude Brise, papermaker, of La Villette.[2]
1841 French patent 207 to Alexandre (Alexander?) Richardson, Robert Davidson and Edward Glaude, of 4 rue de Thionville, La Villette, relating to preparation of wood for paper making.[3]
1841 Listed as engineers & mecaniciens and iron & brass founders at 4 rue de Thionville, and steam engine makers at Pont Tournant, La Villette[4]