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Stream-Line Filters Ltd, of 64 Victoria Street, Westminster, London S.W. 1
of Hele-Shaw Works, Ingate Place, London, SW8 (1937).
of Guildford (1961).
1926 Received an order from H. M. Admiralty for a Stream-Line separator to deal with 200 tons per hour under guarantee of less than one part of oil in 200,000 of water. It is to be fitted to a lighter to pump out oily bilge and ballast water from vessels using Devonport Harbour.
1936 Public company incorporated to acquire and operate the company. The Stream-Line filter was widely used in diesel engines, in power stations and in steel mills.
1937 Manufacturers of oil renovators and separators. "Stream-Line" Oil Renovators, Filters and Separators. 
1939 See Aircraft Industry Suppliers
1961 Manufacturers of oil filters for internal combustion engines, oil recovery filters, aviation re-fuelling equipment and insulating oil filters. 100 employees.