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Aviation History
1937
1937 - 1785.PDF
JULY I, 1937. ADVERTISEMENTS. FLIGHT. 21 E.R.A. k make sure with 'DIAMET Inspected' Steels THE UNITED I COMPANIES ITD English Racing Automobiles Ltd. make sure by specifying "DIAMET Inspected" Steels for important parts in both the old and new E.R.A. designs. "DIAMET Inspected" Steels being made in the high- frequency electric furnace, are "clean," i.e., free from microscopic inclusions, so eliminating the starting points for failure. Furthermore, every delivery of "DIAMET Inspected" Steel is accompanied by a comprehensive certificate of consistency and high physical properties, and every billet and bar is marked with the "Diamet" mark. SAMUEL FOX & CO. LTD., STOCKSBRIDGE, SHEFFIELD Associated with The United Steel Companies Limited DISC INSPECTED*. METALLURCICALLY EXAMINED & TESTED MATERIAL Kindly mention "Flight" when corresponding with advertisers HIGH FREQUENCY ELECTRIC STEEL £ DT.1I
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