Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 167,645 pages of information and 247,064 images on early companies, their products and the people who designed and built them.
Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 147,919 pages of information and 233,587 images on early companies, their products and the people who designed and built them.
of Brook Green, Hammersmith, London.
1919 Private company.
1920 The name of the Marconi-Osram Valve Co was changed to M-O Valve Co[1].
1961 Manufacturers of electronic and thermionic valves, cathode ray tubes and devices, magnatrons, hydrogen thyratrons, klystrons, backward wave oscillators, travelling waves tubes, T.R. cells and geiger-muller counters. 1,500 employees.
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MW1.43