active 1932-1986, manufacturer of meteorological instruments, United Kingdom Francis Barker and Son (1932) Limited 1932 - 1986
1948-1992, railway company regional authority, United Kingdom British Railways, Western Region 1948 - 1992
1931-1979, recording & consumer electrical/electronic goods manufacturer, United Kingdom Electric and Musical Industries Limited 1931 - 1979
active 1944-1954, laboratory apparatus & instrument maker, London, England W and J George and Becker Limited 1910 - 1954
1936-c. 2005, manufacturer of electronic measuring and laboratory equipment, Croydon, England H W Wallace and Company Limited 1936 - 2005
1936-1999, plastics manufacturer (optics), London, Slough; England, British Combined Optical Industries Limited 1936 - 1999
1950-2000, manufacturer car parts, electronics, consumer goods, Indianapolis Arvin Industries Incorporated 1950 - 2000
1935-1989, manufacturer of fire & smoke detection equipment & gas cylinders, Colnbrook, England Walter Kidde Company Limited 1935 - 1989
c.1950-c.1975, public address equipment manufacturer, Middlesex, England Grampian Reproducers Ltd. 1950 - 1975
1935-c.1981, television component and vacuum tube manufacturer, Cambridge, England Cathodeon Ltd. 1935 - 1981