19th May 1939, Page 56
19th May 1939
Page 56
Page 56, 19th May 1939
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Carburetter Fol. Coal-dust Engines
ill.TCH research is proceeding in 1V1Germany into the possibilities of coal-dust as an engine fuel, and patent No. 502,922, from the Hanomag concern of Hannover-Linden, shows......