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Herrmann & Sohne GmbH
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Herrmann & Sohne GmbH
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Publication of FR653991ApublicationCriticalpatent/FR653991A/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
C21D1/84—Controlled slow cooling
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FR653991D1928-05-081928-05-08Dispositif pour l'affinage de l'acier moulé en châssis
ExpiredFR653991A
(fr)