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Richmond Gas Stove and Meter Company of Academy Street, Warrington; often referred to as Richmond Gas Stove Co
1889 Company established by E. W. T. Richmond
1890 The company was registered on 26 September, as Unsworth and Richmond, to take over the business of gas stove manufacturers of the firm of the same name.
1891 In August, the title was changed to Richmond and Co.
1901 In connection with absorption of another business, the name was altered as above. 
Public company registered and amalgamated with:
1902 Death of the founder, Edmund Richmond, Horace Moore Thornton became managing director.
1909 Amalgamated with Clarks Syphon Stove Co. Ltd.
1914 Manufacturers of all kinds of gas apparatus. Specialities: Richmond gas stoves and George Glover's gas meters. Employees 1,000. 
1920 April. Issued catalogue on Rotoflam high-speed steel-hardening furnace and Richmond natural draught gas-heated crucible and muffle furnaces. 
1929 Name changed, presumably to Richmond Gas Stove Co.