PATENT

2926. -----.[RUHRCHEMIE, A.G.] Hydrocarbons From Carbon Monoxide and Hydrogen.  British Patent 502,880, no date.  Chem. Zentralb., 1939, II, p. 4662.

Addition to French Patent 812,883 (abs. 2920)

See also United States Patent 2,238,726 (abs.647)