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 NL7001555ApriorityCriticalpatent/NL7001555A/xx
Priority to DE19712104045prioritypatent/DE2104045A1/de
Priority to CH140471Aprioritypatent/CH515383A/de
Priority to FR7103819Aprioritypatent/FR2078209A5/fr
Priority to GB2173571Aprioritypatent/GB1317496A/en
Publication of NL7001555ApublicationCriticalpatent/NL7001555A/xx