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 DE1967K0057479external-prioritypatent/DE1963195U/de
Priority claimed from DEK60373Uexternal-prioritypatent/DE1987993U/de
Application filedfiledCritical
Publication of NL6804704ApublicationCriticalpatent/NL6804704A/xx