Return to Abstracts of Patents Return to Abstracts of Patents 250-499 Patent Abstracts283. BURNS, W. L., GIBSON, J. W., AND HENRY BALFOUR & Co., LTD. Water-Gas Plant. British Patent 581,447. Oct. 14, 1946. Chem. Abs., vol. 41, 1947, p. 849. Describes apparatus for producing gas of constant quality. |