PATENT

3422. ----- SOCIÉTÉ L’AIR LIQUIDE.[Apparatus for Effecting Exothermic Catalytic Gas Reactions.]  German Patent 633,389, July 25, 1936 (Cl. 12g-4.02).  Chem Abs., vol. 30, 1936, p. 7395.

See British Patent 289,759 (abs. 3424).