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Surface Combustion Corp
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Surface Combustion Corp
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Publication of FR793883ApublicationCriticalpatent/FR793883A/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
C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
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FR793883D1935-01-251935-08-19Méthode et appareils de chauffage par conduits radiants
ExpiredFR793883A
(fr)