3921. WIETZEL, G., WIETZEL, R., AND HALLER, W., (I. G. Farbenindustrie A. G.). [Catalytic Production of Hydrocarbons.] German Patent 505,459, Aug. 19, 1930; appl. I 28,474, filed July 6, 1926 (Cl. 12 o-1). Chem. Abs., vol. 24, 1930, p. 5,764.

PATENT

3921. WIETZEL, G., WIETZEL, R., AND HALLER, W., (I. G. Farbenindustrie A. G.). [Catalytic Production of Hydrocarbons.] German Patent 505,459, Aug. 19, 1930; appl. I 28,474, filed July 6, 1926 (Cl. 12 o-1). Chem. Abs., vol. 24, 1930, p. 5,764.

See British patent 279,347 (abs. 1185).