Gaumont-British Cinemas
1898 Gaumont-British was founded as the British subsidiary of the French Gaumont Film Company.
1922 It became independent of its French parent when Isidore Ostrer acquired control of Gaumont-British.
In 1927 the Ideal Film Company, a leading silent film maker, merged with Gaumont.
1941 Bought by the Rank Organisation
G. B. Equipments, a subsidiary of Gaumont-British, made a number of 16-mm film sound projectors in Britain before and during the Second World War, including models such as the G.B.-Scope A and B, Grosvenor and G.B. K and L series.