1962. KRUPP, F., A.-G. [Benzine Synthesis From Carbon Monoxide and Hydrogen Under Pressure.] German Patent 766,024, no date; appl. K 150,067 (Cl. 12 o-1.03). Auszüge deut. Patent-Anmeldungen, vol. 6, p. 251.

Describes structure of the tubes holding the catalyst.