1618. ------. [I. G. FARBENINDUSTRIE A. G., AND INTERNATIONAL HYDROCARBON SYNTHESIS CO.] [Synthesis of Hydrocarbons From Carbon Monoxide and Hydrogen.] Italian Patent 373,277. Apr. 26. 1939. Chem. Zentralb., 1940. II. p. 2088.

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