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Return to Abstracts of Patents Return to Abstracts of Patents 250-499 Patent Abstracts457. DAMBLY, E., AND BOURSOIS, E. [Hydrocarbons From Water Gas.] Belgian Patent 383,951, Dec. 31, 1931. Chem. Abs., vol. 26, 1932, p. 4823. See French Patent 726,045 (abs. 458). |