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 DD17167873ApriorityCriticalpatent/DD105270A2/xx
Priority to DE19732341968prioritypatent/DE2341968A1/de
Publication of DD105270A2publicationCriticalpatent/DD105270A2/xx