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Return to Abstracts of Patents Return to Abstracts of Patents 1000-1249 Patent Abstracts1248. ------. [I. G. FARBENINDUSTRIE A. G.] [Heat Control.] German Patent Appl. I 66,476, OZ 11,999, filed Feb. 8, 1940. Converter is cooled by injecting the superheated product, instantaneous evaporation. |