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Application filed by Heinreich Mzyk, Eckhard PinkertfiledCriticalHeinreich Mzyk
Priority to DD20574878ApriorityCriticalpatent/DD136859B1/de
Priority to SU797770561Aprioritypatent/SU985168A1/ru
Publication of DD136859A1publicationCriticalpatent/DD136859A1/de
Publication of DD136859B1publicationCriticalpatent/DD136859B1/de