original Patent - Dr. C. Otto & Comp. GmbH , Dahlhausen / Ruhr , 1904 , Herst. von Koks mit metalloxydhaltigen Stoffen !

Published by Patentinhaber: Dr. C. Otto & Comp. GmbH , Dahlhausen / RuhrPatent:Verfahren zur Herstellungvon Koks unter Verwendung von metalloxydhaltigen StoffenPatentiert am:22.10.1904P-328
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