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Return to Abstracts of Patents Return to Abstracts of Patents 500-749 Patent Abstracts706. ------. [FISCHER, F., AND TROPSCH, H.] (Ruhrchemie A. G.). [Producing Paraffin Hydrocarbons.] French Patent 613,200, Nov. 10, 1926; appl. filed Mar. 22, 1926. Chem. Zentralb., 1927, II, p. 2109. See British Patent 255,818 (abs. 698), and Austrian Patent 119,038 (abs. 705). |