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J. Browett Lindley (1931) Ltd, of Letchworth, Herts.
1931 Formation of J Browett Lindley (1931) Ltd (see picture)
Production was moved to the Letchworth facility of K. and L. Steelfounders and Engineers
1937 Manufacturers of steam engines and compressors. 
1938 Death of Thomas Browett
1939 See Aircraft Industry Suppliers- supplier all types of power plant for aircraft and other works; a principal product is an air compressor.
1954 Company closed