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BROWN
BBC Brown Boveri AG Germany
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BROWN
Brown Boveri und Cie AG Germany
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Publication of FR747903ApublicationCriticalpatent/FR747903A/en
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
C21D1/74—Methods of treatment in inert gas, controlled atmosphere, vacuum or pulverulent material
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FR747903D1932-01-211932-12-21
Process for the white annealing of metals in pots or annealing ovens
ExpiredFR747903A
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