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Application filed by Hans Baltz, Wolfgang Baumann, Bethke Hans Joerg, Eva Brueckner, Joerg Firnow, Peter Franke, Horst Haack, Eberhard Heynisch, Peter Schmidtke, Dietrich Voigt, Wilfried WernerfiledCriticalHans Baltz
Priority to DD19630176ApriorityCriticalpatent/DD137803A3/en
Publication of DD137803A3publicationCriticalpatent/DD137803A3/en