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Gleason Works
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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
C21D9/0056—Furnaces through which the charge is moved in a horizontal straight path
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FR552463D1922-04-051922-06-02
Improvements in furnaces for forging, tempering, annealing and similar heat treatments
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