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Muirhead and Company, of Beckenham, electrical and mechanical engineers.
1894 Company founded by Alexander Muirhead
1896 Moved to Elmers End in Beckenham, Kent.
1904 Private company.
1910 Exhibited at the Physical Society's Exhibition
1911 Exhibited electromagnetic rectifiers for converting ac into dc and the automatic transformer switch which only supplies power when a light is switched on.
1960 Public company.
1961 Manufacturers of precision electrical instruments and condensers. Specialised in picture telegraph, measuring and testing equipment for the electrical and communication industries.
1968 Demonstrated facsimile transmission with GEC.
1979 Established Muirhead Office Systems
1981 Company reported a substantial loss; closed the Morden factory