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Return to Abstracts of Patents Return to Abstracts of Patents 250-499 Patent Abstracts334. ------. [CASALE, L.] [Catalyst Chamber.] Swiss Patent 127,251, no date. Schmidt, J., Das Kohlenoxyd, Akad. Verlagsgesell., Leipzig, 1950, p. 214. See British Patent 252,713 (abs. 336). |