2112. ------. MANNESMANNRÖHREN-WERKE AND RUHRCHEMIE A. G. [Catalyst Furnace.] Austrian Patent 158,769, no date. Schmidt, J., Das Kohlenoxyd, Akad. Verlagsgesell., Leipzig, 1950, p. 162.

Heat exchange features are emphasized.

See British Patent 464,242 (abs. 2111) and French Patent 807,703 (abs. 2113).