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Evonik Operations GmbH
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TH Goldschmidt AG
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Publication of FR418971ApublicationCriticalpatent/FR418971A/fr
C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
C23D—ENAMELLING OF, OR APPLYING A VITREOUS LAYER TO, METALS
C23D17/00—De-enamelling
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Chemical & Material Sciences
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Mechanical Engineering
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FR418971D1910-02-111910-08-01Procédé et dispositif pour la récupération de fer, d'acier, etc., des déchets émaillés
ExpiredFR418971A
(fr)
Procédé et dispositif pour la ventilation générale, et pour la formation, la transmission, la direction, la diffusion et la distribution des courants d'air