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 NL6503696ApriorityCriticalpatent/NL138996B/xx
Publication of NL6503696ApublicationCriticalpatent/NL6503696A/xx
Publication of NL138996BpublicationCriticalpatent/NL138996B/xx