PATENTS

      1617.  I. G. FARBENINDUSTRIE A. G., AND INTERNATIONAL HYDROCARBON SYNTHESIS CO.  [Synthesis of Hydrocarbons From Carbon Monoxide and Hydrogen.]  French Patent 854,617.  Apr. 19. 1940: appl. filed May 11, 1939.  Chem. Zentralb., 1940. II. p. 2988.

            See British Patent 516,403 (abs. 1209).