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 DE2232464Aexternal-prioritypatent/DE2232464A1/de
Priority claimed from DE2241627Aexternal-prioritypatent/DE2241627A1/de
Application filedfiledCritical
Publication of NL7309043ApublicationCriticalpatent/NL7309043A/xx
