23. ------. [ANDRY-BOURGEOIS, C. H.] (Societe anonyme le petrole synthetique). Synthesis of Hydrocarbons. Australian Patent 19,926, May 21, 1925: appl. Filed Oct. 6, 1924. Chem. Zentralb., 1926, II, p. 292.

See also French Patent 574,173 (abs. 24), and British Patent 223,748. (abs. 22).