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Application filed by Eugen Cattani, Franz Keel CarlfiledCriticalEugen Cattani
Publication of CH66781ApublicationCriticalpatent/CH66781A/de
CH66781A1913-07-311913-07-31Verfahren und Einrichtung zur Abführung der Staubluft von einer Staubentwicklungsstelle mittelst Staubabsaugung
CH66781A
(de)