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
Priority claimed from DE19742408767external-prioritypatent/DE2408767A1/de
Application filedfiledCritical
Publication of PL93423B1publicationCriticalpatent/PL93423B1/pl