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Return to Abstracts of Patents Return to Abstracts of Patents 500-749 Patent Abstracts703. ------. [FISCHER, F., AND TROPSCH, H.] Paraffinic Hydrocarbons. United States Patent 1,746,464, Feb. 11, 1930; appl. filed Apr. 1, 1926, Serial No. 99,163, in Germany July 21, 1925. Chem. Abs., vol. 24, 1930, p. 1649. See German Patent 484,337 (abs. 699). |