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POETTER GmbH
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POETTER GmbH
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Publication of FR668707ApublicationCriticalpatent/FR668707A/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
C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
C21D1/34—Methods of heating
C21D1/52—Methods of heating with flames
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FR668707D1928-10-241929-01-30Procédé et four pour le traitement thermique des pièces métallique
ExpiredFR668707A
(fr)