Wikipedia
Ratier
Ratier-Figeac is an aircraft components manufacturer in Montrouge, France.
From 1926 until 1930 it also built a car with a 746 cc overhead camshaft engine.
From 1959 until 1962 Ratier made motorcycles, having taken over the motorcycle business of the Centre d'Études de Moteurs à Explosion et à Combustion ( CEMEC). The engines were flat-twins derived from Second World War BMW designs.