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Application filed by Siegfried Schiller, Harry Foerster, Guenter Jaesch, Guenter Hoetzsch, Jonathan Reschke, Heinz KernfiledCriticalSiegfried Schiller
Priority to DD20788278ApriorityCriticalpatent/DD138785A1/de
Publication of DD138785A1publicationCriticalpatent/DD138785A1/de