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 filedfiledCritical
Priority to DD16210172ApriorityCriticalpatent/DD99677A1/xx
Priority to DE19732300033prioritypatent/DE2300033A1/de
Priority to BG023041Aprioritypatent/BG21044A3/xx
Priority to SU1899129Aprioritypatent/SU457062A1/ru
Publication of DD99677A1publicationCriticalpatent/DD99677A1/xx
