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Amme Giesecke & Konegen
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Amme Giesecke & Konegen
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Publication date
Application filed by Amme Giesecke & KonegenfiledCriticalAmme Giesecke & Konegen
Application grantedgrantedCritical
Publication of FR511263ApublicationCriticalpatent/FR511263A/en
Improvements in furnaces used for melting metals, glass and other materials, as well as for roasting or calcining ores, sodium sulphate and other substances