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Return to Abstracts of Patents Return to Abstracts of Patents 1250-1499 Patent Abstracts1309. ------. [I. G. FARBENINDUSTRIE A. G.] Hydrogen and Carbon Monoxide From Methane. British Patent 336,944, Apr. 8, 1929. Chem. Abs., vol, 25, 1931, p. 1956. Describes various details of a process generally similar to that of British Patent 336,635 (abs. 1308). |