 In France, due to cultural disquiet over the word "frog", these kits were sold and marketed under the "Tri-ang" brand, whilst in North America, for similar reasons, the Frog name was thought unacceptable and the kits were repackaged as "Air Lines" – an allusion to Lines Brothers Ltd – the founders of IMA / Tri-ang.In 1971, IMA's parent company, now Rovex Tri-ang, entered receivership and was acquired by Dunbee-Combex-Marx the following year.During the mid-1970s, some of the Frog kit moulds were transferred to various factories in the Soviet Union and the kits began to reappear under the "Novo" brand name.