PATENTS

      1647.  ------.  [INTERNATIONAL HYDROCARBON SYNTHESIS CO.]  [Catalyst Regeneration.]  Norwegian Patent 62,581. no date.  Schmidt, J., Das Kohlenoxyd, Akad. Verlagsgesell., Leipzig, 1950. p. 156.

            See French Patent 853,302 (abs. 1661) and Netherlands Patent 53,095 (abs. 1673).