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Application filed by Alfred LindemannfiledCriticalAlfred Lindemann
Publication of CH42209ApublicationCriticalpatent/CH42209A/en
Method of working flame furnaces, such as furnaces for smelting glass, steel, metals andother materials puddling, welding, heating furnaces andthe like
Method of working flame furnaces, such as furnaces for smelting glass, steel, metals andother materials puddling, welding, heating furnaces andthe like