164. BECKMANN, E., AND AUREDEN, H. (F. Krupp A. G.). [Heat Exchanger for Heat-Exchanging Mediums Working Under Pressure Suitable for Chemical Processes.]. German Patent 729,339, Nov. 19, 1942 (Cl. 12 6-201). Chem. Abs., vol. 38, 1944, p. 285.

PATENTS

164. BECKMANN, E., AND AUREDEN, H. (F. Krupp A. G.). [Heat Exchanger for Heat-Exchanging Mediums Working Under Pressure Suitable for Chemical Processes.]. German Patent 729,339, Nov. 19, 1942 (Cl. 12 6-201). Chem. Abs., vol. 38, 1944, p. 285.