Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,552 pages of information and 233,970 images on early companies, their products and the people who designed and built them.
of Tower House, 40 Trinity Square, London, EC3
1937 Manufacturers of marine and land straining equipment. "Auto-Klean" Filters. "Lolos" Filters. 
1939 See Aircraft Industry Suppliers