original Patent - Victor Ritter von Ofenheim , Wien , 1879 , Bleichen von Wachs , Paraffin , Stearin , Petroleum !!!

Published by Patentinhaber: Victor Ritter von Ofenheim inWienPatent: Verbessertes Verfahren, rohes Erdwachs, Ozokerit, Ceresin,Naturel, Paraffin, Petroleum, Stearin und andere Kohlenwasser- undFettstoffe unter Anwendung von Tonerde, Eisen-, Manganoxyd undMagnesiahydraten und Tonerde- und Magnesia-Silicaten zubleichenPatentiert am: 24.10.1879 P-56
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