active, c. 1930 - current (2009), manufacturer of water purification equipment, United Kingdom The Permutit Company Limited 1912 - 1993
active 1944-1954, laboratory apparatus & instrument maker, London, England W and J George and Becker Limited 1910 - 1954
1911-1932, telephone exchange manufacturer, Liverpool, England Automatic Telephone Manufacturing Company 1911 - 1932
1911-2004, scientist and member of Howard Florey's penicillin team, English; British Heatley, Norman 1911 - 2004
1913-1936, aeroplane propeller design and manufacture, Weybridge, England, British Lang Propeller Company Limited 1913 - 1936