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 NL6801501ApriorityCriticalpatent/NL6801501A/xx
Priority to DE19691904022prioritypatent/DE1904022A1/de
Priority to BE727642Dprioritypatent/BE727642A/xx
Priority to FR6902346Aprioritypatent/FR2001170A1/fr
Publication of NL6801501ApublicationCriticalpatent/NL6801501A/xx
