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 DD189285ApriorityCriticalpatent/DD122484A1/xx
Publication of DD122484A1publicationCriticalpatent/DD122484A1/xx
Priority to DE19762646898prioritypatent/DE2646898A1/de
Priority to SE7612183Aprioritypatent/SE7612183L/xx