PATENTS 2856. ----- [RUHRCHEMIE, A. G.] [Catalyst Carrier.]. Austrian patent 160,467, no date. Schmidt, J., Das Kohlenoxyd, Akad. Verlagsgesell., Leipzig, 1950. p. 154. See British patent 498,007 (abs. 2873), French Patent 819,701 (abs. 3198), and Italian Patent 349,478 (abs. 2859). |