London Omnibus Company and London General Omnibus Company merged in 1908, and in 1912 AEC (Associated Equipment Company) was set up to build chassis for LGOC instead of importing them. AEC signed an Agreement with Daimler who would sell the AEC chassis inside and outside of London. AEC continued to supply vehicles mainly for the London General Omnibus Company until 1925 with few sales outside of this. Daimler and AEC merged together in 1926 in order to separate AEC from LGOC and free it to supply its vehicles more widely. This merger was ended in 1929 allowing AEC to pursue its own markets for buses and lorries, as well oil engines, marine engines. In 1948 AEC bought Crossley Motors as well as the Maudslay Motor Company. In 1949 AEC (or Associated Commercial Vehicles as the holding company was called) bought coachbuilders Park Royal Vehicles and Charles H Roe. In 1961 AEC acquired Thornycroft, and then the whole of ACV was swallowed by Leyland in 1962. The AEC name vanished in 1977.