129. ------. [BARKER, M. E.] Catalysts Suitable for Various Purposes. United States Patent 1,936,565, Nov. 21, 1933. Chem. Abs., vol. 28, 1934. p. 867.

This relates to catalysts that may be formed from ground particles of Cu, Fe, and Mn alloys; generally similar to United States Patent 1,936,563 (abs. 127).

BARKOW, See abs. 3896.