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 DD17782574ApriorityCriticalpatent/DD112006A1/xx
Priority to DE19752502855prioritypatent/DE2502855A1/de
Publication of DD112006A1publicationCriticalpatent/DD112006A1/xx