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Return to Abstracts of Patents Return to Abstracts of Patents 500-749 Patent Abstracts543. ------. [DREYFUS, H.] Methanol. United States Patent 1,868,096, July 19, 1932; appl. filed May 27, 1030. Serial No. 455,989, in Great Britain June 5, 1929. Chem. Abs., vol. 26, 1932, p. 5106. See British Patent 335,962 (abs. 541). |