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Priority claimed from DE2737463Aexternal-prioritypatent/DE2737463C2/de
Application filed by Westfalia Separator AgfiledCriticalWestfalia Separator Ag
Publication of IT7868933A0publicationCriticalpatent/IT7868933A0/it
Application grantedgrantedCritical
Publication of IT1111630BpublicationCriticalpatent/IT1111630B/it