I work for Aerospace publishing and in our entry for Marboussin in the Illustrated Encyclopedia of Aircraft was the following:
Avions Mauboussin was well known in pre-World War 2 days for the design and manufacture of a series of efficient light aircraft and sailplanes. In 1936 the Societe des Etablissements Fouga acquired exclusive production rights for all Mauboussin designs, beginning in 1937 with the M.123. This was a two-seat lightplane with open cockpits, based on the earlier Mauboussin Corsaire, and powered by a 60-hp (45-kW) Salmson engine. An enclosed M.124 was followed by the open-cockpit M.128 and M.129, all three with the same basic airframe as the M.123 but powered respectively by the 85-hp (63-kW) Salmson 5Ap, 100-hp (75-kW) Mathis G.4R, and 70-hp (52-kW) Minie 4Do engines. Subsequent designs included the M.160, a side-by-side two-seat monoplane trainer with a 65-hp (48-kW) Regnier engine; a generally similar M.190 with revised landing gear and powered by a 95-hp (71-kW) Regnier engine; and the single-seat M.200 enclosed-cockpit racing monoplane powered by a 115-hp (86-kW) Regnier 4-EO engine. This last aircraft established new FAI class records over 100 km (62.1 miles) and 1,000 km (621 miles) in May 1939. Aircraft development was then frustrated by the outbreak of war, but subsequent designs included the M.300 which had been intended as a six-seat light civil transport and was completed as a liaison and training aircraft, with retractable landing gear and powered by two 220-hp (164-kW) Renault 6Q engines; it was completed by French air ministry request as a three/four-seat liaison/trainer in 1943. Final design was the M.400 biplane, intended as a 5,512-lb (2500-kg) capacity cargo carrier, with two 350-hp (261-kW) Beam engines mounted on the lower wing to drive pusher propellers.