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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
C21D9/0018—Details, accessories not peculiar to any of the following furnaces for charging, discharging or manipulation of charge
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FR517488A1919-07-041920-06-19Perfectionnements aux fours et à leurs appareils de défournement
ExpiredFR517488A
(fr)