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).