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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
C21D9/0006—Details, accessories not peculiar to any of the following furnaces
C21D9/0025—Supports; Baskets; Containers; Covers
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FR560084D1921-12-201922-12-20Dispositions de chambres portatives pour le recuit en vase clos de tôles fines, pièces d'acier ou analogues
ExpiredFR560084A
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Process for producing transportable and workable shapes from alloys containing iron, or from such mixtures as ferro-manganese, ferro-phosphorus, east iron, east steel orthe like