PATENT
3398. SOCIÉTÉ DES MINES DE DOURGES. Ammonia And Methanol From Coke-Oven orCity Gas. British Patent 366,268, Jan. 21, 1931. British chem.. Abs., 1932, B, p. 329; Chem. Abs., vol. 27, 1933, p. 591.
See French Patent 706,506 (abs. 3399).