Parisien Marcel Bloch was assigned to help manage production of Caudron G.III 1914, and 4 years later with Potez set up SEA (Société d'Etudes Aéronautiques) at Suresnes, producing outstanding SEA.4 2-seat fighter, but order for 1,000 cancelled at Armistice. Lack of demand for aircraft saw Bloch in furniture business, but formed Avions Marcel Bloch 1930, designers including B.-C. Vallières, Henri Deplante, Jean Cabrière and Lucien Servanty. Products included MB.60 and 71 mailplanes, 80 and 81 ambulance aircraft, 120 trimotor colonial transport, 130, 131, 134, 135, 162, 174, 175, 200, 210 and 211 bombers, 150-157 fighters and 161 and 220 airliners, all distinguished by being advanced stressed-skin monoplanes. With 1936 nationalization portions of company were handed to national groups, but main factory at Courbevoie, Paris, was deluged with work. Bloch arrested 1943 and sent to Buchenwald, contracting diphtheria and escaping hanging by minutes. He survived to form Dassault.

Bloch aircraft

MB.60; 1930; Number built: 2; Versions: 2
MB.81; 1931; Number built: 21; Versions: 2
MB.120; 1932; Number built: 11; Versions: 1
MB.131; 1936; Number built: 142; Versions: 3
MB.141; 1932; Number built: 1
MB.152; 1937; Number built: 687; Versions: 7
MB.157; 1940; Number built: 1
MB.161 ‘Languedoc’; 1939; Number built: 101; Versions: 2
MB.162; 1940; Number built: 1
MB.174; 1938; Number built: 228; Versions: 6
MB.200; 1933; Number built: 334; Versions: 3
MB.210 ‘Verdun’; 1934; Number built: 260; Versions: 3
MB.220; 1936; Number built: 17; Versions: 2; Photo - Video
MB.480; 1939; Number built: 2; Versions: 1
MB.700; 1940; Number built: 2; Versions: 1