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Priority to BE653524ApriorityCriticalpatent/BE653524A/fr
Publication of BE653524ApublicationCriticalpatent/BE653524A/fr
C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING