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Priority claimed from DE19691951752external-prioritypatent/DE1951752B2/de
Priority claimed from DE19702046937external-prioritypatent/DE2046937A1/de
Application filed by Weishaupt Max GmbhfiledCriticalWeishaupt Max Gmbh
Application grantedgrantedCritical
Publication of AT305479BpublicationCriticalpatent/AT305479B/de