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 DE19722200863external-prioritypatent/DE2200863C3/de
Application filedfiledCritical
Publication of NL7300172ApublicationCriticalpatent/NL7300172A/xx