Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Reinhard Sorge, Werner Schiller, Martin Braendle, Willy BossfiledCriticalReinhard Sorge
Priority to DD20472778ApriorityCriticalpatent/DD135176A1/de
Publication of DD135176A1publicationCriticalpatent/DD135176A1/de