Return to Abstracts of Patents Return to Abstracts of Patents 1000-1249 Patent Abstracts1084. HOLMGREN, T. A. F. [Formaldehyde.] Swedish Patent 53,822, Feb. 21, 1923. Chem. Abs., vol. 17, 1923, p. 3345. Describes process in which water gas is brought into contact with metals or metal compounds. |