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Return to Abstracts of Patents Return to Abstracts of Patents 1000-1249 Patent Abstracts1217. ------. [I. G. FARBENINDUSTRIE A. G.] [Cracking of Synthesis Oil.] French Patent 855,815, no date. Schmidt, J., Das Kohlenoxyd, Akad. Verlagsgesell., Leipzig, 1950, p. 184. |