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Priority claimed from DD13860269Aexternal-prioritypatent/DD73538A1/de
Application filed by Heinz Lehmann, Gerhard Hendrich, Manfred Barth, Manfred Hippe, Wilfried BohndorffiledCriticalHeinz Lehmann
Priority to DD14150469ApriorityCriticalpatent/DD80229A2/de
Publication of DD80229A2publicationCriticalpatent/DD80229A2/de